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Finding the Fourth Proportional to 557,754.57, 769,621.19 and 328,175.37

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Solution

The fourth proportional to 557,754.57, 769,621.19 and 328,175.37 is: 452,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,754.57 : 769,621.19 = 328,175.37 : x
  2. Step 2: Convert to fraction form
    557,754.57/769,621.19 = 328,175.37/x
  3. Step 3: Cross multiply
    557,754.57x = 769,621.19 × 328,175.37
  4. Step 4: Simplify right side
    557,754.57x = 252,570,717,147.21
  5. Step 5: Solve for x
    x = 252,570,717,147.21/557,754.57
  6. Step 6: Final answer
    x = 452,834.87

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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.