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Finding the Fourth Proportional to 730.39, 1,096.25 and 383.95

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Solution

The fourth proportional to 730.39, 1,096.25 and 383.95 is: 576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.39 : 1,096.25 = 383.95 : x
  2. Step 2: Convert to fraction form
    730.39/1,096.25 = 383.95/x
  3. Step 3: Cross multiply
    730.39x = 1,096.25 × 383.95
  4. Step 4: Simplify right side
    730.39x = 420,903.27
  5. Step 5: Solve for x
    x = 420,903.27/730.39
  6. Step 6: Final answer
    x = 576.27

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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.