Home / 396,961.92-547,577.28-261,020.16

Finding the Fourth Proportional to 396,961.92, 547,577.28 and 261,020.16

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Solution

The fourth proportional to 396,961.92, 547,577.28 and 261,020.16 is: 360,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,961.92 : 547,577.28 = 261,020.16 : x
  2. Step 2: Convert to fraction form
    396,961.92/547,577.28 = 261,020.16/x
  3. Step 3: Cross multiply
    396,961.92x = 547,577.28 × 261,020.16
  4. Step 4: Simplify right side
    396,961.92x = 142,928,709,237.97
  5. Step 5: Solve for x
    x = 142,928,709,237.97/396,961.92
  6. Step 6: Final answer
    x = 360,056.47

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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.