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Finding the Third Proportional to 682,605 and 1,489,622

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Solution

The third proportional to 682,605 and 1,489,622 is: 3,250,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,605 : 1,489,622 = 1,489,622 : x
  2. Step 2: Convert to fraction form
    682,605/1,489,622 = 1,489,622/x
  3. Step 3: Cross multiply
    682,605x = 1,489,622 × 1,489,622
  4. Step 4: Simplify right side
    682,605x = 2,218,973,702,884
  5. Step 5: Solve for x
    x = 2,218,973,702,884/682,605
  6. Step 6: Final answer
    x = 3,250,743.41

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.