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Finding the Fourth Proportional to 732.03, 1,098.30 and 457.80

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Solution

The fourth proportional to 732.03, 1,098.30 and 457.80 is: 686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.03 : 1,098.30 = 457.80 : x
  2. Step 2: Convert to fraction form
    732.03/1,098.30 = 457.80/x
  3. Step 3: Cross multiply
    732.03x = 1,098.30 × 457.80
  4. Step 4: Simplify right side
    732.03x = 502,801.74
  5. Step 5: Solve for x
    x = 502,801.74/732.03
  6. Step 6: Final answer
    x = 686.86

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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.