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Finding the Third Proportional to 370,822 and 809,320

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Solution

The third proportional to 370,822 and 809,320 is: 1,766,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,822 : 809,320 = 809,320 : x
  2. Step 2: Convert to fraction form
    370,822/809,320 = 809,320/x
  3. Step 3: Cross multiply
    370,822x = 809,320 × 809,320
  4. Step 4: Simplify right side
    370,822x = 654,998,862,400
  5. Step 5: Solve for x
    x = 654,998,862,400/370,822
  6. Step 6: Final answer
    x = 1,766,343.05

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.