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Finding the Fourth Proportional to 622.96, 932.55 and 500.20

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Solution

The fourth proportional to 622.96, 932.55 and 500.20 is: 748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.96 : 932.55 = 500.20 : x
  2. Step 2: Convert to fraction form
    622.96/932.55 = 500.20/x
  3. Step 3: Cross multiply
    622.96x = 932.55 × 500.20
  4. Step 4: Simplify right side
    622.96x = 466,461.51
  5. Step 5: Solve for x
    x = 466,461.51/622.96
  6. Step 6: Final answer
    x = 748.78

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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.