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Finding the Third Proportional to 380,822 and 827,200

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Solution

The third proportional to 380,822 and 827,200 is: 1,796,797.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,822 : 827,200 = 827,200 : x
  2. Step 2: Convert to fraction form
    380,822/827,200 = 827,200/x
  3. Step 3: Cross multiply
    380,822x = 827,200 × 827,200
  4. Step 4: Simplify right side
    380,822x = 684,259,840,000
  5. Step 5: Solve for x
    x = 684,259,840,000/380,822
  6. Step 6: Final answer
    x = 1,796,797.03

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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.