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Finding the Third Proportional to 439,481.50 and 660,392

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Solution

The third proportional to 439,481.50 and 660,392 is: 992,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,481.50 : 660,392 = 660,392 : x
  2. Step 2: Convert to fraction form
    439,481.50/660,392 = 660,392/x
  3. Step 3: Cross multiply
    439,481.50x = 660,392 × 660,392
  4. Step 4: Simplify right side
    439,481.50x = 436,117,593,664
  5. Step 5: Solve for x
    x = 436,117,593,664/439,481.50
  6. Step 6: Final answer
    x = 992,345.74

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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.