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Finding the Third Proportional to 321,976.13 and 699,265.13

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Solution

The third proportional to 321,976.13 and 699,265.13 is: 1,518,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,976.13 : 699,265.13 = 699,265.13 : x
  2. Step 2: Convert to fraction form
    321,976.13/699,265.13 = 699,265.13/x
  3. Step 3: Cross multiply
    321,976.13x = 699,265.13 × 699,265.13
  4. Step 4: Simplify right side
    321,976.13x = 488,971,715,041.27
  5. Step 5: Solve for x
    x = 488,971,715,041.27/321,976.13
  6. Step 6: Final answer
    x = 1,518,658.30

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.