Home / 396,438.38-547,539.03-261,077.39

Finding the Fourth Proportional to 396,438.38, 547,539.03 and 261,077.39

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Solution

The fourth proportional to 396,438.38, 547,539.03 and 261,077.39 is: 360,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,438.38 : 547,539.03 = 261,077.39 : x
  2. Step 2: Convert to fraction form
    396,438.38/547,539.03 = 261,077.39/x
  3. Step 3: Cross multiply
    396,438.38x = 547,539.03 × 261,077.39
  4. Step 4: Simplify right side
    396,438.38x = 142,950,058,137.84
  5. Step 5: Solve for x
    x = 142,950,058,137.84/396,438.38
  6. Step 6: Final answer
    x = 360,585.82

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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.