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Finding the Third Proportional to 2,690,739 and 4,170,609

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Solution

The third proportional to 2,690,739 and 4,170,609 is: 6,464,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690,739 : 4,170,609 = 4,170,609 : x
  2. Step 2: Convert to fraction form
    2,690,739/4,170,609 = 4,170,609/x
  3. Step 3: Cross multiply
    2,690,739x = 4,170,609 × 4,170,609
  4. Step 4: Simplify right side
    2,690,739x = 17,393,979,430,881
  5. Step 5: Solve for x
    x = 17,393,979,430,881/2,690,739
  6. Step 6: Final answer
    x = 6,464,387.45

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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.