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Finding the Fourth Proportional to 888.77, 1,333.19 and 614.79

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Solution

The fourth proportional to 888.77, 1,333.19 and 614.79 is: 922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.77 : 1,333.19 = 614.79 : x
  2. Step 2: Convert to fraction form
    888.77/1,333.19 = 614.79/x
  3. Step 3: Cross multiply
    888.77x = 1,333.19 × 614.79
  4. Step 4: Simplify right side
    888.77x = 819,633.42
  5. Step 5: Solve for x
    x = 819,633.42/888.77
  6. Step 6: Final answer
    x = 922.21

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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.