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Finding the Third Proportional to 385,081.31 and 858,705.75

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Solution

The third proportional to 385,081.31 and 858,705.75 is: 1,914,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,081.31 : 858,705.75 = 858,705.75 : x
  2. Step 2: Convert to fraction form
    385,081.31/858,705.75 = 858,705.75/x
  3. Step 3: Cross multiply
    385,081.31x = 858,705.75 × 858,705.75
  4. Step 4: Simplify right side
    385,081.31x = 737,375,565,083.06
  5. Step 5: Solve for x
    x = 737,375,565,083.06/385,081.31
  6. Step 6: Final answer
    x = 1,914,856.79

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.