Nice! Although a Fifth is not dead on 3:1 (or 1.5) either, see this chart for interval ratios:
You could achieve a bunch of these by using the ratio offsets on Digitone. (Which didn’t exist when this thread was created)
Another way to think of it is that the ratios (as in the parameters) are really just multiplicators of the base frequency - usually the MIDI note being played. So if a ratio of 1 is C, then 1.4983 is a G - you’ve multiplied C (e.g 261.625[…] Hz for a middle C) with 1.4983
I find this stuff extremely fun - it’s actually how I came up with the concept for the Chord machine in Cycles.