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Finding the Fourth Proportional to 934, 1,401.64 and 326

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Solution

The fourth proportional to 934, 1,401.64 and 326 is: 489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    934 : 1,401.64 = 326 : x
  2. Step 2: Convert to fraction form
    934/1,401.64 = 326/x
  3. Step 3: Cross multiply
    934x = 1,401.64 × 326
  4. Step 4: Simplify right side
    934x = 456,934.64
  5. Step 5: Solve for x
    x = 456,934.64/934
  6. Step 6: Final answer
    x = 489.22

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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.