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Finding the Fourth Proportional to 479,251.56, 661,584.36 and 304,893.42

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Solution

The fourth proportional to 479,251.56, 661,584.36 and 304,893.42 is: 420,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,251.56 : 661,584.36 = 304,893.42 : x
  2. Step 2: Convert to fraction form
    479,251.56/661,584.36 = 304,893.42/x
  3. Step 3: Cross multiply
    479,251.56x = 661,584.36 × 304,893.42
  4. Step 4: Simplify right side
    479,251.56x = 201,712,718,138.91
  5. Step 5: Solve for x
    x = 201,712,718,138.91/479,251.56
  6. Step 6: Final answer
    x = 420,891.10

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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.