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Finding the Fourth Proportional to 622.53, 932.92 and 491.95

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Solution

The fourth proportional to 622.53, 932.92 and 491.95 is: 737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.53 : 932.92 = 491.95 : x
  2. Step 2: Convert to fraction form
    622.53/932.92 = 491.95/x
  3. Step 3: Cross multiply
    622.53x = 932.92 × 491.95
  4. Step 4: Simplify right side
    622.53x = 458,949.99
  5. Step 5: Solve for x
    x = 458,949.99/622.53
  6. Step 6: Final answer
    x = 737.23

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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.