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Finding the Third Proportional to 451,638 and 660,493

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Solution

The third proportional to 451,638 and 660,493 is: 965,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,638 : 660,493 = 660,493 : x
  2. Step 2: Convert to fraction form
    451,638/660,493 = 660,493/x
  3. Step 3: Cross multiply
    451,638x = 660,493 × 660,493
  4. Step 4: Simplify right side
    451,638x = 436,251,003,049
  5. Step 5: Solve for x
    x = 436,251,003,049/451,638
  6. Step 6: Final answer
    x = 965,930.69

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.