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Finding the Fourth Proportional to 396,546.53, 547,518.74 and 243,789.74

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Solution

The fourth proportional to 396,546.53, 547,518.74 and 243,789.74 is: 336,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,546.53 : 547,518.74 = 243,789.74 : x
  2. Step 2: Convert to fraction form
    396,546.53/547,518.74 = 243,789.74/x
  3. Step 3: Cross multiply
    396,546.53x = 547,518.74 × 243,789.74
  4. Step 4: Simplify right side
    396,546.53x = 133,479,447,313.19
  5. Step 5: Solve for x
    x = 133,479,447,313.19/396,546.53
  6. Step 6: Final answer
    x = 336,604.76

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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.