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Finding the Fourth Proportional to 577.42, 796.95 and 542.25

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Solution

The fourth proportional to 577.42, 796.95 and 542.25 is: 748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.42 : 796.95 = 542.25 : x
  2. Step 2: Convert to fraction form
    577.42/796.95 = 542.25/x
  3. Step 3: Cross multiply
    577.42x = 796.95 × 542.25
  4. Step 4: Simplify right side
    577.42x = 432,148.13
  5. Step 5: Solve for x
    x = 432,148.13/577.42
  6. Step 6: Final answer
    x = 748.41

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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.