VizPro Multiply Vector

I’m trying to create a node graph that multiplies my cylinder height input from meters into inches. The problem is that the output value from the multiply node is 0, 0, 0, instead of 0, 0, 39.37. I’m using the trial version. How do I get the node to multiply the vectors?

This is my first time trying parametric modeling and I’m pretty excited there’s a parametric modeling extension for SketchUp. It’s very cool.

Anyways, my end goal is to create a cylinder that changes volume based on a value to help solve @digitaliangermany’s problem.