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Finding the Fourth Proportional to 618.62, 922.51 and 604.71

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Solution

The fourth proportional to 618.62, 922.51 and 604.71 is: 901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.62 : 922.51 = 604.71 : x
  2. Step 2: Convert to fraction form
    618.62/922.51 = 604.71/x
  3. Step 3: Cross multiply
    618.62x = 922.51 × 604.71
  4. Step 4: Simplify right side
    618.62x = 557,851.78
  5. Step 5: Solve for x
    x = 557,851.78/618.62
  6. Step 6: Final answer
    x = 901.78

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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.