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Finding the Fourth Proportional to 617.73, 922.65 and 559.08

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Solution

The fourth proportional to 617.73, 922.65 and 559.08 is: 835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.73 : 922.65 = 559.08 : x
  2. Step 2: Convert to fraction form
    617.73/922.65 = 559.08/x
  3. Step 3: Cross multiply
    617.73x = 922.65 × 559.08
  4. Step 4: Simplify right side
    617.73x = 515,833.83
  5. Step 5: Solve for x
    x = 515,833.83/617.73
  6. Step 6: Final answer
    x = 835.04

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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.