Home / 396,579.18-547,221.53-226,780.50

Finding the Fourth Proportional to 396,579.18, 547,221.53 and 226,780.50

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Solution

The fourth proportional to 396,579.18, 547,221.53 and 226,780.50 is: 312,924.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,579.18 : 547,221.53 = 226,780.50 : x
  2. Step 2: Convert to fraction form
    396,579.18/547,221.53 = 226,780.50/x
  3. Step 3: Cross multiply
    396,579.18x = 547,221.53 × 226,780.50
  4. Step 4: Simplify right side
    396,579.18x = 124,099,171,050.26
  5. Step 5: Solve for x
    x = 124,099,171,050.26/396,579.18
  6. Step 6: Final answer
    x = 312,924.07

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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.