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Finding the Fourth Proportional to 451,568.95, 622,654.39 and 288,006.73

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Solution

The fourth proportional to 451,568.95, 622,654.39 and 288,006.73 is: 397,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,568.95 : 622,654.39 = 288,006.73 : x
  2. Step 2: Convert to fraction form
    451,568.95/622,654.39 = 288,006.73/x
  3. Step 3: Cross multiply
    451,568.95x = 622,654.39 × 288,006.73
  4. Step 4: Simplify right side
    451,568.95x = 179,328,654,123.60
  5. Step 5: Solve for x
    x = 179,328,654,123.60/451,568.95
  6. Step 6: Final answer
    x = 397,123.53

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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.