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Finding the Fourth Proportional to 576.06, 864.54 and 394.74

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Solution

The fourth proportional to 576.06, 864.54 and 394.74 is: 592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.06 : 864.54 = 394.74 : x
  2. Step 2: Convert to fraction form
    576.06/864.54 = 394.74/x
  3. Step 3: Cross multiply
    576.06x = 864.54 × 394.74
  4. Step 4: Simplify right side
    576.06x = 341,268.52
  5. Step 5: Solve for x
    x = 341,268.52/576.06
  6. Step 6: Final answer
    x = 592.42

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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.