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Finding the Third Proportional to 443,344.22 and 687,888.28

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Solution

The third proportional to 443,344.22 and 687,888.28 is: 1,067,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,344.22 : 687,888.28 = 687,888.28 : x
  2. Step 2: Convert to fraction form
    443,344.22/687,888.28 = 687,888.28/x
  3. Step 3: Cross multiply
    443,344.22x = 687,888.28 × 687,888.28
  4. Step 4: Simplify right side
    443,344.22x = 473,190,287,481.08
  5. Step 5: Solve for x
    x = 473,190,287,481.08/443,344.22
  6. Step 6: Final answer
    x = 1,067,320.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.