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Finding the Third Proportional to 328,257 and 706,734

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Solution

The third proportional to 328,257 and 706,734 is: 1,521,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,257 : 706,734 = 706,734 : x
  2. Step 2: Convert to fraction form
    328,257/706,734 = 706,734/x
  3. Step 3: Cross multiply
    328,257x = 706,734 × 706,734
  4. Step 4: Simplify right side
    328,257x = 499,472,946,756
  5. Step 5: Solve for x
    x = 499,472,946,756/328,257
  6. Step 6: Final answer
    x = 1,521,591.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.