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Finding the Third Proportional to 372,711.38 and 818,641.69

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Solution

The third proportional to 372,711.38 and 818,641.69 is: 1,798,105.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,711.38 : 818,641.69 = 818,641.69 : x
  2. Step 2: Convert to fraction form
    372,711.38/818,641.69 = 818,641.69/x
  3. Step 3: Cross multiply
    372,711.38x = 818,641.69 × 818,641.69
  4. Step 4: Simplify right side
    372,711.38x = 670,174,212,512.85
  5. Step 5: Solve for x
    x = 670,174,212,512.85/372,711.38
  6. Step 6: Final answer
    x = 1,798,105.07

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.