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Finding the Fourth Proportional to 888.84, 1,331.10 and 614.16

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Solution

The fourth proportional to 888.84, 1,331.10 and 614.16 is: 919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.84 : 1,331.10 = 614.16 : x
  2. Step 2: Convert to fraction form
    888.84/1,331.10 = 614.16/x
  3. Step 3: Cross multiply
    888.84x = 1,331.10 × 614.16
  4. Step 4: Simplify right side
    888.84x = 817,508.38
  5. Step 5: Solve for x
    x = 817,508.38/888.84
  6. Step 6: Final answer
    x = 919.75

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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.