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Finding the Third Proportional to 709,676 and 1,538,728

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Solution

The third proportional to 709,676 and 1,538,728 is: 3,336,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,676 : 1,538,728 = 1,538,728 : x
  2. Step 2: Convert to fraction form
    709,676/1,538,728 = 1,538,728/x
  3. Step 3: Cross multiply
    709,676x = 1,538,728 × 1,538,728
  4. Step 4: Simplify right side
    709,676x = 2,367,683,857,984
  5. Step 5: Solve for x
    x = 2,367,683,857,984/709,676
  6. Step 6: Final answer
    x = 3,336,288.47

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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.