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Finding the Third Proportional to 381,704 and 829,178

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Solution

The third proportional to 381,704 and 829,178 is: 1,801,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,704 : 829,178 = 829,178 : x
  2. Step 2: Convert to fraction form
    381,704/829,178 = 829,178/x
  3. Step 3: Cross multiply
    381,704x = 829,178 × 829,178
  4. Step 4: Simplify right side
    381,704x = 687,536,155,684
  5. Step 5: Solve for x
    x = 687,536,155,684/381,704
  6. Step 6: Final answer
    x = 1,801,228.58

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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.