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Finding the Third Proportional to 326,228 and 718,681

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Solution

The third proportional to 326,228 and 718,681 is: 1,583,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,228 : 718,681 = 718,681 : x
  2. Step 2: Convert to fraction form
    326,228/718,681 = 718,681/x
  3. Step 3: Cross multiply
    326,228x = 718,681 × 718,681
  4. Step 4: Simplify right side
    326,228x = 516,502,379,761
  5. Step 5: Solve for x
    x = 516,502,379,761/326,228
  6. Step 6: Final answer
    x = 1,583,255.82

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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.