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Finding the Third Proportional to 298,794 and 647,373

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Solution

The third proportional to 298,794 and 647,373 is: 1,402,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,794 : 647,373 = 647,373 : x
  2. Step 2: Convert to fraction form
    298,794/647,373 = 647,373/x
  3. Step 3: Cross multiply
    298,794x = 647,373 × 647,373
  4. Step 4: Simplify right side
    298,794x = 419,091,801,129
  5. Step 5: Solve for x
    x = 419,091,801,129/298,794
  6. Step 6: Final answer
    x = 1,402,611.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.