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Finding the Fourth Proportional to 576.48, 794.58 and 451.92

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Solution

The fourth proportional to 576.48, 794.58 and 451.92 is: 622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.48 : 794.58 = 451.92 : x
  2. Step 2: Convert to fraction form
    576.48/794.58 = 451.92/x
  3. Step 3: Cross multiply
    576.48x = 794.58 × 451.92
  4. Step 4: Simplify right side
    576.48x = 359,086.59
  5. Step 5: Solve for x
    x = 359,086.59/576.48
  6. Step 6: Final answer
    x = 622.90

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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.