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Finding the Fourth Proportional to 622.51, 932.87 and 484.95

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Solution

The fourth proportional to 622.51, 932.87 and 484.95 is: 726.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.51 : 932.87 = 484.95 : x
  2. Step 2: Convert to fraction form
    622.51/932.87 = 484.95/x
  3. Step 3: Cross multiply
    622.51x = 932.87 × 484.95
  4. Step 4: Simplify right side
    622.51x = 452,395.31
  5. Step 5: Solve for x
    x = 452,395.31/622.51
  6. Step 6: Final answer
    x = 726.73

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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.