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Finding the Third Proportional to 278,748 and 613,764

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Solution

The third proportional to 278,748 and 613,764 is: 1,351,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,748 : 613,764 = 613,764 : x
  2. Step 2: Convert to fraction form
    278,748/613,764 = 613,764/x
  3. Step 3: Cross multiply
    278,748x = 613,764 × 613,764
  4. Step 4: Simplify right side
    278,748x = 376,706,247,696
  5. Step 5: Solve for x
    x = 376,706,247,696/278,748
  6. Step 6: Final answer
    x = 1,351,422.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.