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Finding the Third Proportional to 443,215.13 and 664,660.69

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Solution

The third proportional to 443,215.13 and 664,660.69 is: 996,748.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,215.13 : 664,660.69 = 664,660.69 : x
  2. Step 2: Convert to fraction form
    443,215.13/664,660.69 = 664,660.69/x
  3. Step 3: Cross multiply
    443,215.13x = 664,660.69 × 664,660.69
  4. Step 4: Simplify right side
    443,215.13x = 441,773,829,507.97
  5. Step 5: Solve for x
    x = 441,773,829,507.97/443,215.13
  6. Step 6: Final answer
    x = 996,748.09

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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.