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Finding the Fourth Proportional to 550.68, 825.47 and 453.48

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Solution

The fourth proportional to 550.68, 825.47 and 453.48 is: 679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.68 : 825.47 = 453.48 : x
  2. Step 2: Convert to fraction form
    550.68/825.47 = 453.48/x
  3. Step 3: Cross multiply
    550.68x = 825.47 × 453.48
  4. Step 4: Simplify right side
    550.68x = 374,331.87
  5. Step 5: Solve for x
    x = 374,331.87/550.68
  6. Step 6: Final answer
    x = 679.76

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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.