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Finding the Third Proportional to 682,604 and 1,489,620

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Solution

The third proportional to 682,604 and 1,489,620 is: 3,250,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,604 : 1,489,620 = 1,489,620 : x
  2. Step 2: Convert to fraction form
    682,604/1,489,620 = 1,489,620/x
  3. Step 3: Cross multiply
    682,604x = 1,489,620 × 1,489,620
  4. Step 4: Simplify right side
    682,604x = 2,218,967,744,400
  5. Step 5: Solve for x
    x = 2,218,967,744,400/682,604
  6. Step 6: Final answer
    x = 3,250,739.44

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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.