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Finding the Fourth Proportional to 577.54, 865.84 and 395.29

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Solution

The fourth proportional to 577.54, 865.84 and 395.29 is: 592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.54 : 865.84 = 395.29 : x
  2. Step 2: Convert to fraction form
    577.54/865.84 = 395.29/x
  3. Step 3: Cross multiply
    577.54x = 865.84 × 395.29
  4. Step 4: Simplify right side
    577.54x = 342,257.89
  5. Step 5: Solve for x
    x = 342,257.89/577.54
  6. Step 6: Final answer
    x = 592.61

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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.