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Finding the Third Proportional to 686,830.50 and 1,491,891

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Solution

The third proportional to 686,830.50 and 1,491,891 is: 3,240,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,830.50 : 1,491,891 = 1,491,891 : x
  2. Step 2: Convert to fraction form
    686,830.50/1,491,891 = 1,491,891/x
  3. Step 3: Cross multiply
    686,830.50x = 1,491,891 × 1,491,891
  4. Step 4: Simplify right side
    686,830.50x = 2,225,738,755,881
  5. Step 5: Solve for x
    x = 2,225,738,755,881/686,830.50
  6. Step 6: Final answer
    x = 3,240,593.94

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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.