Home / 396,629.92-547,342.48-217,780.64

Finding the Fourth Proportional to 396,629.92, 547,342.48 and 217,780.64

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Solution

The fourth proportional to 396,629.92, 547,342.48 and 217,780.64 is: 300,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,629.92 : 547,342.48 = 217,780.64 : x
  2. Step 2: Convert to fraction form
    396,629.92/547,342.48 = 217,780.64/x
  3. Step 3: Cross multiply
    396,629.92x = 547,342.48 × 217,780.64
  4. Step 4: Simplify right side
    396,629.92x = 119,200,595,593.59
  5. Step 5: Solve for x
    x = 119,200,595,593.59/396,629.92
  6. Step 6: Final answer
    x = 300,533.54

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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.