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Finding the Fourth Proportional to 574.72, 793.73 and 554.22

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Solution

The fourth proportional to 574.72, 793.73 and 554.22 is: 765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.72 : 793.73 = 554.22 : x
  2. Step 2: Convert to fraction form
    574.72/793.73 = 554.22/x
  3. Step 3: Cross multiply
    574.72x = 793.73 × 554.22
  4. Step 4: Simplify right side
    574.72x = 439,901.04
  5. Step 5: Solve for x
    x = 439,901.04/574.72
  6. Step 6: Final answer
    x = 765.42

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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.