We can achieve that now through fairness in redistricting.
No you can't.
Your way doesn't return the ratio of EC votes between the HoR and the Senate to what it should be. It keeps it stuck in 1929 and every year that goes by makes it worse.
Your way doesn't scale the number of total EC votes as our population grows.
Your way ALSO doesn't return the ratio of Citizens to Representatives to anything resembling sanity. Ratios of nearly 800,000 to 1, and growing, are irrational and break Democracy.
You could redistrict the ever loving hell out of the other 49 States but Wyoming would keep it's 3 EC votes and its outsized vote for President. It would keep it's outsized influence in the HoR and it would keep it's ranking as #1 in the Citizen to Representative Ratio.
So much of what everyone hates about our Federal Government today is DIRECTLY tied to a vastly undersized HoR. The body is simply too small to adequately represent a population of over 300,000,000 people.