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Finding the Third Proportional to 279,720 and 443,620.13

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Solution

The third proportional to 279,720 and 443,620.13 is: 703,556.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,720 : 443,620.13 = 443,620.13 : x
  2. Step 2: Convert to fraction form
    279,720/443,620.13 = 443,620.13/x
  3. Step 3: Cross multiply
    279,720x = 443,620.13 × 443,620.13
  4. Step 4: Simplify right side
    279,720x = 196,798,815,305.02
  5. Step 5: Solve for x
    x = 196,798,815,305.02/279,720
  6. Step 6: Final answer
    x = 703,556.47

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.