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Finding the Third Proportional to 381,805.50 and 862,617.75

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Solution

The third proportional to 381,805.50 and 862,617.75 is: 1,948,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,805.50 : 862,617.75 = 862,617.75 : x
  2. Step 2: Convert to fraction form
    381,805.50/862,617.75 = 862,617.75/x
  3. Step 3: Cross multiply
    381,805.50x = 862,617.75 × 862,617.75
  4. Step 4: Simplify right side
    381,805.50x = 744,109,382,615.06
  5. Step 5: Solve for x
    x = 744,109,382,615.06/381,805.50
  6. Step 6: Final answer
    x = 1,948,922.64

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.