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Finding the Fourth Proportional to 545,443.27, 752,764.03 and 303,725.78

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Solution

The fourth proportional to 545,443.27, 752,764.03 and 303,725.78 is: 419,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,443.27 : 752,764.03 = 303,725.78 : x
  2. Step 2: Convert to fraction form
    545,443.27/752,764.03 = 303,725.78/x
  3. Step 3: Cross multiply
    545,443.27x = 752,764.03 × 303,725.78
  4. Step 4: Simplify right side
    545,443.27x = 228,633,840,058.73
  5. Step 5: Solve for x
    x = 228,633,840,058.73/545,443.27
  6. Step 6: Final answer
    x = 419,170.71

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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.