Home / 396,919.44-547,749.54-215,629.83

Finding the Fourth Proportional to 396,919.44, 547,749.54 and 215,629.83

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Solution

The fourth proportional to 396,919.44, 547,749.54 and 215,629.83 is: 297,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,919.44 : 547,749.54 = 215,629.83 : x
  2. Step 2: Convert to fraction form
    396,919.44/547,749.54 = 215,629.83/x
  3. Step 3: Cross multiply
    396,919.44x = 547,749.54 × 215,629.83
  4. Step 4: Simplify right side
    396,919.44x = 118,111,140,192.78
  5. Step 5: Solve for x
    x = 118,111,140,192.78/396,919.44
  6. Step 6: Final answer
    x = 297,569.55

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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.