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Finding the Third Proportional to 910,632.38 and 1,978,728.75

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Solution

The third proportional to 910,632.38 and 1,978,728.75 is: 4,299,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,632.38 : 1,978,728.75 = 1,978,728.75 : x
  2. Step 2: Convert to fraction form
    910,632.38/1,978,728.75 = 1,978,728.75/x
  3. Step 3: Cross multiply
    910,632.38x = 1,978,728.75 × 1,978,728.75
  4. Step 4: Simplify right side
    910,632.38x = 3,915,367,466,076.56
  5. Step 5: Solve for x
    x = 3,915,367,466,076.56/910,632.38
  6. Step 6: Final answer
    x = 4,299,613.73

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.