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Finding the Third Proportional to 401,863 and 547,269

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Solution

The third proportional to 401,863 and 547,269 is: 745,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,863 : 547,269 = 547,269 : x
  2. Step 2: Convert to fraction form
    401,863/547,269 = 547,269/x
  3. Step 3: Cross multiply
    401,863x = 547,269 × 547,269
  4. Step 4: Simplify right side
    401,863x = 299,503,358,361
  5. Step 5: Solve for x
    x = 299,503,358,361/401,863
  6. Step 6: Final answer
    x = 745,287.22

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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.