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Finding the Third Proportional to 915,631 and 1,988,883

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Solution

The third proportional to 915,631 and 1,988,883 is: 4,320,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,631 : 1,988,883 = 1,988,883 : x
  2. Step 2: Convert to fraction form
    915,631/1,988,883 = 1,988,883/x
  3. Step 3: Cross multiply
    915,631x = 1,988,883 × 1,988,883
  4. Step 4: Simplify right side
    915,631x = 3,955,655,587,689
  5. Step 5: Solve for x
    x = 3,955,655,587,689/915,631
  6. Step 6: Final answer
    x = 4,320,141.62

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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.