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Finding the Fourth Proportional to 617.04, 924.44 and 385.79

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Solution

The fourth proportional to 617.04, 924.44 and 385.79 is: 577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.04 : 924.44 = 385.79 : x
  2. Step 2: Convert to fraction form
    617.04/924.44 = 385.79/x
  3. Step 3: Cross multiply
    617.04x = 924.44 × 385.79
  4. Step 4: Simplify right side
    617.04x = 356,633.16
  5. Step 5: Solve for x
    x = 356,633.16/617.04
  6. Step 6: Final answer
    x = 577.97

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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.