Finding the Fourth Proportional to 677,036.08, 934,275.09 and 390,539.08
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Solution
The fourth proportional to 677,036.08, 934,275.09 and 390,539.08 is: 538,923.91
Step by Step Solution
- Step 1: Write the proportion equation
677,036.08 : 934,275.09 = 390,539.08 : x - Step 2: Convert to fraction form
677,036.08/934,275.09 = 390,539.08/x - Step 3: Cross multiply
677,036.08x = 934,275.09 × 390,539.08 - Step 4: Simplify right side
677,036.08x = 364,870,934,115.52 - Step 5: Solve for x
x = 364,870,934,115.52/677,036.08 - Step 6: Final answer
x = 538,923.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.