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Finding the Fourth Proportional to 550.62, 825.81 and 480.06

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Solution

The fourth proportional to 550.62, 825.81 and 480.06 is: 719.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.62 : 825.81 = 480.06 : x
  2. Step 2: Convert to fraction form
    550.62/825.81 = 480.06/x
  3. Step 3: Cross multiply
    550.62x = 825.81 × 480.06
  4. Step 4: Simplify right side
    550.62x = 396,438.35
  5. Step 5: Solve for x
    x = 396,438.35/550.62
  6. Step 6: Final answer
    x = 719.99

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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.