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Finding the Third Proportional to 539,682 and 779,679

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Solution

The third proportional to 539,682 and 779,679 is: 1,126,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,682 : 779,679 = 779,679 : x
  2. Step 2: Convert to fraction form
    539,682/779,679 = 779,679/x
  3. Step 3: Cross multiply
    539,682x = 779,679 × 779,679
  4. Step 4: Simplify right side
    539,682x = 607,899,343,041
  5. Step 5: Solve for x
    x = 607,899,343,041/539,682
  6. Step 6: Final answer
    x = 1,126,402.85

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.