Home / 396,439.21-547,112.76-224,356.73

Finding the Fourth Proportional to 396,439.21, 547,112.76 and 224,356.73

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Solution

The fourth proportional to 396,439.21, 547,112.76 and 224,356.73 is: 309,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,439.21 : 547,112.76 = 224,356.73 : x
  2. Step 2: Convert to fraction form
    396,439.21/547,112.76 = 224,356.73/x
  3. Step 3: Cross multiply
    396,439.21x = 547,112.76 × 224,356.73
  4. Step 4: Simplify right side
    396,439.21x = 122,748,429,774.88
  5. Step 5: Solve for x
    x = 122,748,429,774.88/396,439.21
  6. Step 6: Final answer
    x = 309,627.37

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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.