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Finding the Fourth Proportional to 547,279.52, 820,861.50 and 259,022.12

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Solution

The fourth proportional to 547,279.52, 820,861.50 and 259,022.12 is: 388,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,279.52 : 820,861.50 = 259,022.12 : x
  2. Step 2: Convert to fraction form
    547,279.52/820,861.50 = 259,022.12/x
  3. Step 3: Cross multiply
    547,279.52x = 820,861.50 × 259,022.12
  4. Step 4: Simplify right side
    547,279.52x = 212,621,285,956.38
  5. Step 5: Solve for x
    x = 212,621,285,956.38/547,279.52
  6. Step 6: Final answer
    x = 388,505.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.