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Finding the Fourth Proportional to 577.88, 865.40 and 541.44

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Solution

The fourth proportional to 577.88, 865.40 and 541.44 is: 810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.88 : 865.40 = 541.44 : x
  2. Step 2: Convert to fraction form
    577.88/865.40 = 541.44/x
  3. Step 3: Cross multiply
    577.88x = 865.40 × 541.44
  4. Step 4: Simplify right side
    577.88x = 468,562.18
  5. Step 5: Solve for x
    x = 468,562.18/577.88
  6. Step 6: Final answer
    x = 810.83

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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.