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Finding the Fourth Proportional to 730.92, 1,008.56 and 432.17

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Solution

The fourth proportional to 730.92, 1,008.56 and 432.17 is: 596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.92 : 1,008.56 = 432.17 : x
  2. Step 2: Convert to fraction form
    730.92/1,008.56 = 432.17/x
  3. Step 3: Cross multiply
    730.92x = 1,008.56 × 432.17
  4. Step 4: Simplify right side
    730.92x = 435,869.38
  5. Step 5: Solve for x
    x = 435,869.38/730.92
  6. Step 6: Final answer
    x = 596.33

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Double scale
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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.