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Finding the Fourth Proportional to 441.57, 606.18 and 379.31

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Solution

The fourth proportional to 441.57, 606.18 and 379.31 is: 520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.57 : 606.18 = 379.31 : x
  2. Step 2: Convert to fraction form
    441.57/606.18 = 379.31/x
  3. Step 3: Cross multiply
    441.57x = 606.18 × 379.31
  4. Step 4: Simplify right side
    441.57x = 229,927.10
  5. Step 5: Solve for x
    x = 229,927.10/441.57
  6. Step 6: Final answer
    x = 520.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.