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Finding the Third Proportional to 439,480.48 and 660,390.68

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Solution

The third proportional to 439,480.48 and 660,390.68 is: 992,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,480.48 : 660,390.68 = 660,390.68 : x
  2. Step 2: Convert to fraction form
    439,480.48/660,390.68 = 660,390.68/x
  3. Step 3: Cross multiply
    439,480.48x = 660,390.68 × 660,390.68
  4. Step 4: Simplify right side
    439,480.48x = 436,115,849,818.12
  5. Step 5: Solve for x
    x = 436,115,849,818.12/439,480.48
  6. Step 6: Final answer
    x = 992,344.08

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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.