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Finding the Fourth Proportional to 573.87, 791.51 and 554.82

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Solution

The fourth proportional to 573.87, 791.51 and 554.82 is: 765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.87 : 791.51 = 554.82 : x
  2. Step 2: Convert to fraction form
    573.87/791.51 = 554.82/x
  3. Step 3: Cross multiply
    573.87x = 791.51 × 554.82
  4. Step 4: Simplify right side
    573.87x = 439,145.58
  5. Step 5: Solve for x
    x = 439,145.58/573.87
  6. Step 6: Final answer
    x = 765.24

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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.