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Finding the Third Proportional to 663,400.13 and 994,057.31

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Solution

The third proportional to 663,400.13 and 994,057.31 is: 1,489,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,400.13 : 994,057.31 = 994,057.31 : x
  2. Step 2: Convert to fraction form
    663,400.13/994,057.31 = 994,057.31/x
  3. Step 3: Cross multiply
    663,400.13x = 994,057.31 × 994,057.31
  4. Step 4: Simplify right side
    663,400.13x = 988,149,940,534.72
  5. Step 5: Solve for x
    x = 988,149,940,534.72/663,400.13
  6. Step 6: Final answer
    x = 1,489,523.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.