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Finding the Fourth Proportional to 568,723.92, 852,479.64 and 428,047.44

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Solution

The fourth proportional to 568,723.92, 852,479.64 and 428,047.44 is: 641,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,723.92 : 852,479.64 = 428,047.44 : x
  2. Step 2: Convert to fraction form
    568,723.92/852,479.64 = 428,047.44/x
  3. Step 3: Cross multiply
    568,723.92x = 852,479.64 × 428,047.44
  4. Step 4: Simplify right side
    568,723.92x = 364,901,727,554.12
  5. Step 5: Solve for x
    x = 364,901,727,554.12/568,723.92
  6. Step 6: Final answer
    x = 641,614.88

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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.