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Finding the Third Proportional to 989,515 and 1,481,679

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Solution

The third proportional to 989,515 and 1,481,679 is: 2,218,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,515 : 1,481,679 = 1,481,679 : x
  2. Step 2: Convert to fraction form
    989,515/1,481,679 = 1,481,679/x
  3. Step 3: Cross multiply
    989,515x = 1,481,679 × 1,481,679
  4. Step 4: Simplify right side
    989,515x = 2,195,372,659,041
  5. Step 5: Solve for x
    x = 2,195,372,659,041/989,515
  6. Step 6: Final answer
    x = 2,218,635.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.