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Finding the Fourth Proportional to 888.32, 1,331.32 and 476.98

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Solution

The fourth proportional to 888.32, 1,331.32 and 476.98 is: 714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.32 : 1,331.32 = 476.98 : x
  2. Step 2: Convert to fraction form
    888.32/1,331.32 = 476.98/x
  3. Step 3: Cross multiply
    888.32x = 1,331.32 × 476.98
  4. Step 4: Simplify right side
    888.32x = 635,010.88
  5. Step 5: Solve for x
    x = 635,010.88/888.32
  6. Step 6: Final answer
    x = 714.84

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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.