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Finding the Fourth Proportional to 576.39, 795.08 and 418.84

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Solution

The fourth proportional to 576.39, 795.08 and 418.84 is: 577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.39 : 795.08 = 418.84 : x
  2. Step 2: Convert to fraction form
    576.39/795.08 = 418.84/x
  3. Step 3: Cross multiply
    576.39x = 795.08 × 418.84
  4. Step 4: Simplify right side
    576.39x = 333,005.24
  5. Step 5: Solve for x
    x = 333,005.24/576.39
  6. Step 6: Final answer
    x = 577.75

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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.