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Finding the Fourth Proportional to 732.48, 1,100.88 and 490.44

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Solution

The fourth proportional to 732.48, 1,100.88 and 490.44 is: 737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.48 : 1,100.88 = 490.44 : x
  2. Step 2: Convert to fraction form
    732.48/1,100.88 = 490.44/x
  3. Step 3: Cross multiply
    732.48x = 1,100.88 × 490.44
  4. Step 4: Simplify right side
    732.48x = 539,915.59
  5. Step 5: Solve for x
    x = 539,915.59/732.48
  6. Step 6: Final answer
    x = 737.11

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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.