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Finding the Third Proportional to 308,886 and 667,737.75

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Solution

The third proportional to 308,886 and 667,737.75 is: 1,443,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,886 : 667,737.75 = 667,737.75 : x
  2. Step 2: Convert to fraction form
    308,886/667,737.75 = 667,737.75/x
  3. Step 3: Cross multiply
    308,886x = 667,737.75 × 667,737.75
  4. Step 4: Simplify right side
    308,886x = 445,873,702,775.06
  5. Step 5: Solve for x
    x = 445,873,702,775.06/308,886
  6. Step 6: Final answer
    x = 1,443,489.52

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.