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Finding the Fourth Proportional to 632.79, 869.22 and 614.34

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Solution

The fourth proportional to 632.79, 869.22 and 614.34 is: 843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.79 : 869.22 = 614.34 : x
  2. Step 2: Convert to fraction form
    632.79/869.22 = 614.34/x
  3. Step 3: Cross multiply
    632.79x = 869.22 × 614.34
  4. Step 4: Simplify right side
    632.79x = 533,996.61
  5. Step 5: Solve for x
    x = 533,996.61/632.79
  6. Step 6: Final answer
    x = 843.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.