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Finding the Fourth Proportional to 618.93, 921.42 and 593.82

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Solution

The fourth proportional to 618.93, 921.42 and 593.82 is: 884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.93 : 921.42 = 593.82 : x
  2. Step 2: Convert to fraction form
    618.93/921.42 = 593.82/x
  3. Step 3: Cross multiply
    618.93x = 921.42 × 593.82
  4. Step 4: Simplify right side
    618.93x = 547,157.62
  5. Step 5: Solve for x
    x = 547,157.62/618.93
  6. Step 6: Final answer
    x = 884.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.