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Finding the Fourth Proportional to 626.38, 938.63 and 567.79

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Solution

The fourth proportional to 626.38, 938.63 and 567.79 is: 850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.38 : 938.63 = 567.79 : x
  2. Step 2: Convert to fraction form
    626.38/938.63 = 567.79/x
  3. Step 3: Cross multiply
    626.38x = 938.63 × 567.79
  4. Step 4: Simplify right side
    626.38x = 532,943.80
  5. Step 5: Solve for x
    x = 532,943.80/626.38
  6. Step 6: Final answer
    x = 850.83

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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.