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Finding the Third Proportional to 451,688 and 665,067

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Solution

The third proportional to 451,688 and 665,067 is: 979,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,688 : 665,067 = 665,067 : x
  2. Step 2: Convert to fraction form
    451,688/665,067 = 665,067/x
  3. Step 3: Cross multiply
    451,688x = 665,067 × 665,067
  4. Step 4: Simplify right side
    451,688x = 442,314,114,489
  5. Step 5: Solve for x
    x = 442,314,114,489/451,688
  6. Step 6: Final answer
    x = 979,246.99

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.