Home / 396,837.44-547,639.79-215,552.90

Finding the Fourth Proportional to 396,837.44, 547,639.79 and 215,552.90

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Solution

The fourth proportional to 396,837.44, 547,639.79 and 215,552.90 is: 297,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,837.44 : 547,639.79 = 215,552.90 : x
  2. Step 2: Convert to fraction form
    396,837.44/547,639.79 = 215,552.90/x
  3. Step 3: Cross multiply
    396,837.44x = 547,639.79 × 215,552.90
  4. Step 4: Simplify right side
    396,837.44x = 118,045,341,073.93
  5. Step 5: Solve for x
    x = 118,045,341,073.93/396,837.44
  6. Step 6: Final answer
    x = 297,465.24

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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.