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Finding the Fourth Proportional to 576.36, 794.70 and 418.68

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Solution

The fourth proportional to 576.36, 794.70 and 418.68 is: 577.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.36 : 794.70 = 418.68 : x
  2. Step 2: Convert to fraction form
    576.36/794.70 = 418.68/x
  3. Step 3: Cross multiply
    576.36x = 794.70 × 418.68
  4. Step 4: Simplify right side
    576.36x = 332,725.00
  5. Step 5: Solve for x
    x = 332,725.00/576.36
  6. Step 6: Final answer
    x = 577.29

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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.