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Finding the Third Proportional to 555,939 and 1,218,255

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Solution

The third proportional to 555,939 and 1,218,255 is: 2,669,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,939 : 1,218,255 = 1,218,255 : x
  2. Step 2: Convert to fraction form
    555,939/1,218,255 = 1,218,255/x
  3. Step 3: Cross multiply
    555,939x = 1,218,255 × 1,218,255
  4. Step 4: Simplify right side
    555,939x = 1,484,145,245,025
  5. Step 5: Solve for x
    x = 1,484,145,245,025/555,939
  6. Step 6: Final answer
    x = 2,669,618.87

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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.