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Finding the Third Proportional to 361,918 and 779,930

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Solution

The third proportional to 361,918 and 779,930 is: 1,680,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,918 : 779,930 = 779,930 : x
  2. Step 2: Convert to fraction form
    361,918/779,930 = 779,930/x
  3. Step 3: Cross multiply
    361,918x = 779,930 × 779,930
  4. Step 4: Simplify right side
    361,918x = 608,290,804,900
  5. Step 5: Solve for x
    x = 608,290,804,900/361,918
  6. Step 6: Final answer
    x = 1,680,742.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.