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Finding the Third Proportional to 378,436.50 and 569,244.38

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Solution

The third proportional to 378,436.50 and 569,244.38 is: 856,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,436.50 : 569,244.38 = 569,244.38 : x
  2. Step 2: Convert to fraction form
    378,436.50/569,244.38 = 569,244.38/x
  3. Step 3: Cross multiply
    378,436.50x = 569,244.38 × 569,244.38
  4. Step 4: Simplify right side
    378,436.50x = 324,039,158,469.14
  5. Step 5: Solve for x
    x = 324,039,158,469.14/378,436.50
  6. Step 6: Final answer
    x = 856,257.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.