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Finding the Fourth Proportional to 542.60, 748.50 and 411.38

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Solution

The fourth proportional to 542.60, 748.50 and 411.38 is: 567.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.60 : 748.50 = 411.38 : x
  2. Step 2: Convert to fraction form
    542.60/748.50 = 411.38/x
  3. Step 3: Cross multiply
    542.60x = 748.50 × 411.38
  4. Step 4: Simplify right side
    542.60x = 307,917.93
  5. Step 5: Solve for x
    x = 307,917.93/542.60
  6. Step 6: Final answer
    x = 567.49

Related Problems

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Double scale
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Similar ratio
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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.