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Finding the Third Proportional to 317,328 and 660,897

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Solution

The third proportional to 317,328 and 660,897 is: 1,376,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,328 : 660,897 = 660,897 : x
  2. Step 2: Convert to fraction form
    317,328/660,897 = 660,897/x
  3. Step 3: Cross multiply
    317,328x = 660,897 × 660,897
  4. Step 4: Simplify right side
    317,328x = 436,784,844,609
  5. Step 5: Solve for x
    x = 436,784,844,609/317,328
  6. Step 6: Final answer
    x = 1,376,445.96

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.