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Finding the Fourth Proportional to 824.97, 1,234.97 and 531.89

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Solution

The fourth proportional to 824.97, 1,234.97 and 531.89 is: 796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.97 : 1,234.97 = 531.89 : x
  2. Step 2: Convert to fraction form
    824.97/1,234.97 = 531.89/x
  3. Step 3: Cross multiply
    824.97x = 1,234.97 × 531.89
  4. Step 4: Simplify right side
    824.97x = 656,865.02
  5. Step 5: Solve for x
    x = 656,865.02/824.97
  6. Step 6: Final answer
    x = 796.23

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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.