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Finding the Third Proportional to 292,728 and 451,908

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Solution

The third proportional to 292,728 and 451,908 is: 697,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,728 : 451,908 = 451,908 : x
  2. Step 2: Convert to fraction form
    292,728/451,908 = 451,908/x
  3. Step 3: Cross multiply
    292,728x = 451,908 × 451,908
  4. Step 4: Simplify right side
    292,728x = 204,220,840,464
  5. Step 5: Solve for x
    x = 204,220,840,464/292,728
  6. Step 6: Final answer
    x = 697,647.10

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.