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Finding the Fourth Proportional to 888.44, 1,331.03 and 654.75

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Solution

The fourth proportional to 888.44, 1,331.03 and 654.75 is: 980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.44 : 1,331.03 = 654.75 : x
  2. Step 2: Convert to fraction form
    888.44/1,331.03 = 654.75/x
  3. Step 3: Cross multiply
    888.44x = 1,331.03 × 654.75
  4. Step 4: Simplify right side
    888.44x = 871,493.53
  5. Step 5: Solve for x
    x = 871,493.53/888.44
  6. Step 6: Final answer
    x = 980.93

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Double scale
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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.