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Finding the Third Proportional to 408,090 and 888,454

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Solution

The third proportional to 408,090 and 888,454 is: 1,934,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,090 : 888,454 = 888,454 : x
  2. Step 2: Convert to fraction form
    408,090/888,454 = 888,454/x
  3. Step 3: Cross multiply
    408,090x = 888,454 × 888,454
  4. Step 4: Simplify right side
    408,090x = 789,350,510,116
  5. Step 5: Solve for x
    x = 789,350,510,116/408,090
  6. Step 6: Final answer
    x = 1,934,255.95

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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.