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Finding the Fourth Proportional to 606.28, 908.68 and 432.01

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Solution

The fourth proportional to 606.28, 908.68 and 432.01 is: 647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.28 : 908.68 = 432.01 : x
  2. Step 2: Convert to fraction form
    606.28/908.68 = 432.01/x
  3. Step 3: Cross multiply
    606.28x = 908.68 × 432.01
  4. Step 4: Simplify right side
    606.28x = 392,553.22
  5. Step 5: Solve for x
    x = 392,553.22/606.28
  6. Step 6: Final answer
    x = 647.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.