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Finding the Fourth Proportional to 622.46, 937.39 and 542.27

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Solution

The fourth proportional to 622.46, 937.39 and 542.27 is: 816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.46 : 937.39 = 542.27 : x
  2. Step 2: Convert to fraction form
    622.46/937.39 = 542.27/x
  3. Step 3: Cross multiply
    622.46x = 937.39 × 542.27
  4. Step 4: Simplify right side
    622.46x = 508,318.66
  5. Step 5: Solve for x
    x = 508,318.66/622.46
  6. Step 6: Final answer
    x = 816.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.