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Finding the Third Proportional to 372,865.78 and 800,911.55

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Solution

The third proportional to 372,865.78 and 800,911.55 is: 1,720,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,865.78 : 800,911.55 = 800,911.55 : x
  2. Step 2: Convert to fraction form
    372,865.78/800,911.55 = 800,911.55/x
  3. Step 3: Cross multiply
    372,865.78x = 800,911.55 × 800,911.55
  4. Step 4: Simplify right side
    372,865.78x = 641,459,305,917.71
  5. Step 5: Solve for x
    x = 641,459,305,917.71/372,865.78
  6. Step 6: Final answer
    x = 1,720,349.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.