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Finding the Third Proportional to 439,482 and 660,393

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Solution

The third proportional to 439,482 and 660,393 is: 992,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,482 : 660,393 = 660,393 : x
  2. Step 2: Convert to fraction form
    439,482/660,393 = 660,393/x
  3. Step 3: Cross multiply
    439,482x = 660,393 × 660,393
  4. Step 4: Simplify right side
    439,482x = 436,118,914,449
  5. Step 5: Solve for x
    x = 436,118,914,449/439,482
  6. Step 6: Final answer
    x = 992,347.61

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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.