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Finding the Third Proportional to 312,552 and 672,561

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Solution

The third proportional to 312,552 and 672,561 is: 1,447,241.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,552 : 672,561 = 672,561 : x
  2. Step 2: Convert to fraction form
    312,552/672,561 = 672,561/x
  3. Step 3: Cross multiply
    312,552x = 672,561 × 672,561
  4. Step 4: Simplify right side
    312,552x = 452,338,298,721
  5. Step 5: Solve for x
    x = 452,338,298,721/312,552
  6. Step 6: Final answer
    x = 1,447,241.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.