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Finding the Third Proportional to 686,699.44 and 1,491,616.69

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Solution

The third proportional to 686,699.44 and 1,491,616.69 is: 3,240,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,699.44 : 1,491,616.69 = 1,491,616.69 : x
  2. Step 2: Convert to fraction form
    686,699.44/1,491,616.69 = 1,491,616.69/x
  3. Step 3: Cross multiply
    686,699.44x = 1,491,616.69 × 1,491,616.69
  4. Step 4: Simplify right side
    686,699.44x = 2,224,920,342,428.47
  5. Step 5: Solve for x
    x = 2,224,920,342,428.47/686,699.44
  6. Step 6: Final answer
    x = 3,240,020.63

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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.