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Finding the Fourth Proportional to 576.05, 794.41 and 379.22

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Solution

The fourth proportional to 576.05, 794.41 and 379.22 is: 522.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.05 : 794.41 = 379.22 : x
  2. Step 2: Convert to fraction form
    576.05/794.41 = 379.22/x
  3. Step 3: Cross multiply
    576.05x = 794.41 × 379.22
  4. Step 4: Simplify right side
    576.05x = 301,251.24
  5. Step 5: Solve for x
    x = 301,251.24/576.05
  6. Step 6: Final answer
    x = 522.96

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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.