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Finding the Fourth Proportional to 531.38, 795.68 and 498.94

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Solution

The fourth proportional to 531.38, 795.68 and 498.94 is: 747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.38 : 795.68 = 498.94 : x
  2. Step 2: Convert to fraction form
    531.38/795.68 = 498.94/x
  3. Step 3: Cross multiply
    531.38x = 795.68 × 498.94
  4. Step 4: Simplify right side
    531.38x = 396,996.58
  5. Step 5: Solve for x
    x = 396,996.58/531.38
  6. Step 6: Final answer
    x = 747.10

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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.