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Finding the Third Proportional to 528,414.75 and 818,380.13

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Solution

The third proportional to 528,414.75 and 818,380.13 is: 1,267,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,414.75 : 818,380.13 = 818,380.13 : x
  2. Step 2: Convert to fraction form
    528,414.75/818,380.13 = 818,380.13/x
  3. Step 3: Cross multiply
    528,414.75x = 818,380.13 × 818,380.13
  4. Step 4: Simplify right side
    528,414.75x = 669,746,028,995.02
  5. Step 5: Solve for x
    x = 669,746,028,995.02/528,414.75
  6. Step 6: Final answer
    x = 1,267,462.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.