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Finding the Fourth Proportional to 535.57, 738.61 and 411.01

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Solution

The fourth proportional to 535.57, 738.61 and 411.01 is: 566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.57 : 738.61 = 411.01 : x
  2. Step 2: Convert to fraction form
    535.57/738.61 = 411.01/x
  3. Step 3: Cross multiply
    535.57x = 738.61 × 411.01
  4. Step 4: Simplify right side
    535.57x = 303,576.10
  5. Step 5: Solve for x
    x = 303,576.10/535.57
  6. Step 6: Final answer
    x = 566.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.