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Finding the Third Proportional to 557,474 and 1,223,218

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Solution

The third proportional to 557,474 and 1,223,218 is: 2,684,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,474 : 1,223,218 = 1,223,218 : x
  2. Step 2: Convert to fraction form
    557,474/1,223,218 = 1,223,218/x
  3. Step 3: Cross multiply
    557,474x = 1,223,218 × 1,223,218
  4. Step 4: Simplify right side
    557,474x = 1,496,262,275,524
  5. Step 5: Solve for x
    x = 1,496,262,275,524/557,474
  6. Step 6: Final answer
    x = 2,684,003.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.