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Finding the Third Proportional to 442,342 and 667,177.50

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Solution

The third proportional to 442,342 and 667,177.50 is: 1,006,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,342 : 667,177.50 = 667,177.50 : x
  2. Step 2: Convert to fraction form
    442,342/667,177.50 = 667,177.50/x
  3. Step 3: Cross multiply
    442,342x = 667,177.50 × 667,177.50
  4. Step 4: Simplify right side
    442,342x = 445,125,816,506.25
  5. Step 5: Solve for x
    x = 445,125,816,506.25/442,342
  6. Step 6: Final answer
    x = 1,006,293.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.