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Finding the Fourth Proportional to 888.47, 1,225.75 and 573.65

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Solution

The fourth proportional to 888.47, 1,225.75 and 573.65 is: 791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.47 : 1,225.75 = 573.65 : x
  2. Step 2: Convert to fraction form
    888.47/1,225.75 = 573.65/x
  3. Step 3: Cross multiply
    888.47x = 1,225.75 × 573.65
  4. Step 4: Simplify right side
    888.47x = 703,151.49
  5. Step 5: Solve for x
    x = 703,151.49/888.47
  6. Step 6: Final answer
    x = 791.42

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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.