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Finding the Fourth Proportional to 732.59, 1,098.48 and 321.24

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Solution

The fourth proportional to 732.59, 1,098.48 and 321.24 is: 481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.59 : 1,098.48 = 321.24 : x
  2. Step 2: Convert to fraction form
    732.59/1,098.48 = 321.24/x
  3. Step 3: Cross multiply
    732.59x = 1,098.48 × 321.24
  4. Step 4: Simplify right side
    732.59x = 352,875.72
  5. Step 5: Solve for x
    x = 352,875.72/732.59
  6. Step 6: Final answer
    x = 481.69

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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.