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Finding the Fourth Proportional to 577.59, 865.85 and 433.95

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Solution

The fourth proportional to 577.59, 865.85 and 433.95 is: 650.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.59 : 865.85 = 433.95 : x
  2. Step 2: Convert to fraction form
    577.59/865.85 = 433.95/x
  3. Step 3: Cross multiply
    577.59x = 865.85 × 433.95
  4. Step 4: Simplify right side
    577.59x = 375,733.44
  5. Step 5: Solve for x
    x = 375,733.44/577.59
  6. Step 6: Final answer
    x = 650.52

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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.