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Finding the Fourth Proportional to 598.50, 826.11 and 480.87

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Solution

The fourth proportional to 598.50, 826.11 and 480.87 is: 663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.50 : 826.11 = 480.87 : x
  2. Step 2: Convert to fraction form
    598.50/826.11 = 480.87/x
  3. Step 3: Cross multiply
    598.50x = 826.11 × 480.87
  4. Step 4: Simplify right side
    598.50x = 397,251.52
  5. Step 5: Solve for x
    x = 397,251.52/598.50
  6. Step 6: Final answer
    x = 663.75

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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.