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Finding the Third Proportional to 401,800 and 545,694

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Solution

The third proportional to 401,800 and 545,694 is: 741,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,800 : 545,694 = 545,694 : x
  2. Step 2: Convert to fraction form
    401,800/545,694 = 545,694/x
  3. Step 3: Cross multiply
    401,800x = 545,694 × 545,694
  4. Step 4: Simplify right side
    401,800x = 297,781,941,636
  5. Step 5: Solve for x
    x = 297,781,941,636/401,800
  6. Step 6: Final answer
    x = 741,119.81

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.