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Finding the Fourth Proportional to 626.43, 865.35 and 534.18

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Solution

The fourth proportional to 626.43, 865.35 and 534.18 is: 737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.43 : 865.35 = 534.18 : x
  2. Step 2: Convert to fraction form
    626.43/865.35 = 534.18/x
  3. Step 3: Cross multiply
    626.43x = 865.35 × 534.18
  4. Step 4: Simplify right side
    626.43x = 462,252.66
  5. Step 5: Solve for x
    x = 462,252.66/626.43
  6. Step 6: Final answer
    x = 737.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.