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Finding the Third Proportional to 317,859 and 673,626

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Solution

The third proportional to 317,859 and 673,626 is: 1,427,588.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,859 : 673,626 = 673,626 : x
  2. Step 2: Convert to fraction form
    317,859/673,626 = 673,626/x
  3. Step 3: Cross multiply
    317,859x = 673,626 × 673,626
  4. Step 4: Simplify right side
    317,859x = 453,771,987,876
  5. Step 5: Solve for x
    x = 453,771,987,876/317,859
  6. Step 6: Final answer
    x = 1,427,588.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.