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Finding the Fourth Proportional to 618.04, 927.28 and 374.72

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Solution

The fourth proportional to 618.04, 927.28 and 374.72 is: 562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.04 : 927.28 = 374.72 : x
  2. Step 2: Convert to fraction form
    618.04/927.28 = 374.72/x
  3. Step 3: Cross multiply
    618.04x = 927.28 × 374.72
  4. Step 4: Simplify right side
    618.04x = 347,470.36
  5. Step 5: Solve for x
    x = 347,470.36/618.04
  6. Step 6: Final answer
    x = 562.21

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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.