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Finding the Third Proportional to 451,350 and 991,260

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Solution

The third proportional to 451,350 and 991,260 is: 2,177,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,350 : 991,260 = 991,260 : x
  2. Step 2: Convert to fraction form
    451,350/991,260 = 991,260/x
  3. Step 3: Cross multiply
    451,350x = 991,260 × 991,260
  4. Step 4: Simplify right side
    451,350x = 982,596,387,600
  5. Step 5: Solve for x
    x = 982,596,387,600/451,350
  6. Step 6: Final answer
    x = 2,177,016.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.