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Finding the Fourth Proportional to 618.88, 851.52 and 601.63

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Solution

The fourth proportional to 618.88, 851.52 and 601.63 is: 827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.88 : 851.52 = 601.63 : x
  2. Step 2: Convert to fraction form
    618.88/851.52 = 601.63/x
  3. Step 3: Cross multiply
    618.88x = 851.52 × 601.63
  4. Step 4: Simplify right side
    618.88x = 512,299.98
  5. Step 5: Solve for x
    x = 512,299.98/618.88
  6. Step 6: Final answer
    x = 827.79

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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.