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Finding the Third Proportional to 379,338 and 812,481

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Solution

The third proportional to 379,338 and 812,481 is: 1,740,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,338 : 812,481 = 812,481 : x
  2. Step 2: Convert to fraction form
    379,338/812,481 = 812,481/x
  3. Step 3: Cross multiply
    379,338x = 812,481 × 812,481
  4. Step 4: Simplify right side
    379,338x = 660,125,375,361
  5. Step 5: Solve for x
    x = 660,125,375,361/379,338
  6. Step 6: Final answer
    x = 1,740,203.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.