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Finding the Third Proportional to 456,660 and 709,839

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Solution

The third proportional to 456,660 and 709,839 is: 1,103,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,660 : 709,839 = 709,839 : x
  2. Step 2: Convert to fraction form
    456,660/709,839 = 709,839/x
  3. Step 3: Cross multiply
    456,660x = 709,839 × 709,839
  4. Step 4: Simplify right side
    456,660x = 503,871,405,921
  5. Step 5: Solve for x
    x = 503,871,405,921/456,660
  6. Step 6: Final answer
    x = 1,103,384.15

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.