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Finding the Third Proportional to 686,653.50 and 1,491,523.25

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Solution

The third proportional to 686,653.50 and 1,491,523.25 is: 3,239,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,653.50 : 1,491,523.25 = 1,491,523.25 : x
  2. Step 2: Convert to fraction form
    686,653.50/1,491,523.25 = 1,491,523.25/x
  3. Step 3: Cross multiply
    686,653.50x = 1,491,523.25 × 1,491,523.25
  4. Step 4: Simplify right side
    686,653.50x = 2,224,641,605,290.56
  5. Step 5: Solve for x
    x = 2,224,641,605,290.56/686,653.50
  6. Step 6: Final answer
    x = 3,239,831.45

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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.