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Finding the Third Proportional to 431,643 and 880,422

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Solution

The third proportional to 431,643 and 880,422 is: 1,795,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,643 : 880,422 = 880,422 : x
  2. Step 2: Convert to fraction form
    431,643/880,422 = 880,422/x
  3. Step 3: Cross multiply
    431,643x = 880,422 × 880,422
  4. Step 4: Simplify right side
    431,643x = 775,142,898,084
  5. Step 5: Solve for x
    x = 775,142,898,084/431,643
  6. Step 6: Final answer
    x = 1,795,796.29

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.