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Finding the Third Proportional to 278,910 and 574,329

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Solution

The third proportional to 278,910 and 574,329 is: 1,182,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,910 : 574,329 = 574,329 : x
  2. Step 2: Convert to fraction form
    278,910/574,329 = 574,329/x
  3. Step 3: Cross multiply
    278,910x = 574,329 × 574,329
  4. Step 4: Simplify right side
    278,910x = 329,853,800,241
  5. Step 5: Solve for x
    x = 329,853,800,241/278,910
  6. Step 6: Final answer
    x = 1,182,653.19

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.