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Finding the Fourth Proportional to 379,757.97, 523,589.67 and 243,551.61

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Solution

The fourth proportional to 379,757.97, 523,589.67 and 243,551.61 is: 335,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,757.97 : 523,589.67 = 243,551.61 : x
  2. Step 2: Convert to fraction form
    379,757.97/523,589.67 = 243,551.61/x
  3. Step 3: Cross multiply
    379,757.97x = 523,589.67 × 243,551.61
  4. Step 4: Simplify right side
    379,757.97x = 127,521,107,107.87
  5. Step 5: Solve for x
    x = 127,521,107,107.87/379,757.97
  6. Step 6: Final answer
    x = 335,795.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.