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Finding the Third Proportional to 338,718 and 746,556

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Solution

The third proportional to 338,718 and 746,556 is: 1,645,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,718 : 746,556 = 746,556 : x
  2. Step 2: Convert to fraction form
    338,718/746,556 = 746,556/x
  3. Step 3: Cross multiply
    338,718x = 746,556 × 746,556
  4. Step 4: Simplify right side
    338,718x = 557,345,861,136
  5. Step 5: Solve for x
    x = 557,345,861,136/338,718
  6. Step 6: Final answer
    x = 1,645,456.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.