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Finding the Fourth Proportional to 888.59, 1,331.84 and 498.58

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Solution

The fourth proportional to 888.59, 1,331.84 and 498.58 is: 747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.59 : 1,331.84 = 498.58 : x
  2. Step 2: Convert to fraction form
    888.59/1,331.84 = 498.58/x
  3. Step 3: Cross multiply
    888.59x = 1,331.84 × 498.58
  4. Step 4: Simplify right side
    888.59x = 664,026.70
  5. Step 5: Solve for x
    x = 664,026.70/888.59
  6. Step 6: Final answer
    x = 747.28

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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.