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Finding the Third Proportional to 439,512.75 and 660,629.25

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Solution

The third proportional to 439,512.75 and 660,629.25 is: 992,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,512.75 : 660,629.25 = 660,629.25 : x
  2. Step 2: Convert to fraction form
    439,512.75/660,629.25 = 660,629.25/x
  3. Step 3: Cross multiply
    439,512.75x = 660,629.25 × 660,629.25
  4. Step 4: Simplify right side
    439,512.75x = 436,431,005,955.56
  5. Step 5: Solve for x
    x = 436,431,005,955.56/439,512.75
  6. Step 6: Final answer
    x = 992,988.27

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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.