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Finding the Fourth Proportional to 574, 860.42 and 330.04

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Solution

The fourth proportional to 574, 860.42 and 330.04 is: 494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574 : 860.42 = 330.04 : x
  2. Step 2: Convert to fraction form
    574/860.42 = 330.04/x
  3. Step 3: Cross multiply
    574x = 860.42 × 330.04
  4. Step 4: Simplify right side
    574x = 283,973.02
  5. Step 5: Solve for x
    x = 283,973.02/574
  6. Step 6: Final answer
    x = 494.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.