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Finding the Fourth Proportional to 614.59, 921.93 and 531.49

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Solution

The fourth proportional to 614.59, 921.93 and 531.49 is: 797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.59 : 921.93 = 531.49 : x
  2. Step 2: Convert to fraction form
    614.59/921.93 = 531.49/x
  3. Step 3: Cross multiply
    614.59x = 921.93 × 531.49
  4. Step 4: Simplify right side
    614.59x = 489,996.58
  5. Step 5: Solve for x
    x = 489,996.58/614.59
  6. Step 6: Final answer
    x = 797.27

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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.