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Finding the Fourth Proportional to 576.91, 796.09 and 380.49

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Solution

The fourth proportional to 576.91, 796.09 and 380.49 is: 525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.91 : 796.09 = 380.49 : x
  2. Step 2: Convert to fraction form
    576.91/796.09 = 380.49/x
  3. Step 3: Cross multiply
    576.91x = 796.09 × 380.49
  4. Step 4: Simplify right side
    576.91x = 302,904.28
  5. Step 5: Solve for x
    x = 302,904.28/576.91
  6. Step 6: Final answer
    x = 525.05

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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.