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Finding the Fourth Proportional to 618.28, 852.06 and 443.32

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Solution

The fourth proportional to 618.28, 852.06 and 443.32 is: 610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.28 : 852.06 = 443.32 : x
  2. Step 2: Convert to fraction form
    618.28/852.06 = 443.32/x
  3. Step 3: Cross multiply
    618.28x = 852.06 × 443.32
  4. Step 4: Simplify right side
    618.28x = 377,735.24
  5. Step 5: Solve for x
    x = 377,735.24/618.28
  6. Step 6: Final answer
    x = 610.95

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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.