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Finding the Fourth Proportional to 894.12, 1,340.08 and 374.12

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Solution

The fourth proportional to 894.12, 1,340.08 and 374.12 is: 560.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.12 : 1,340.08 = 374.12 : x
  2. Step 2: Convert to fraction form
    894.12/1,340.08 = 374.12/x
  3. Step 3: Cross multiply
    894.12x = 1,340.08 × 374.12
  4. Step 4: Simplify right side
    894.12x = 501,350.73
  5. Step 5: Solve for x
    x = 501,350.73/894.12
  6. Step 6: Final answer
    x = 560.72

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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.