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Finding the Fourth Proportional to 576.22, 795.36 and 418.87

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Solution

The fourth proportional to 576.22, 795.36 and 418.87 is: 578.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.22 : 795.36 = 418.87 : x
  2. Step 2: Convert to fraction form
    576.22/795.36 = 418.87/x
  3. Step 3: Cross multiply
    576.22x = 795.36 × 418.87
  4. Step 4: Simplify right side
    576.22x = 333,152.44
  5. Step 5: Solve for x
    x = 333,152.44/576.22
  6. Step 6: Final answer
    x = 578.17

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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.