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Finding the Fourth Proportional to 439.80, 604.11 and 437.64

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Solution

The fourth proportional to 439.80, 604.11 and 437.64 is: 601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.80 : 604.11 = 437.64 : x
  2. Step 2: Convert to fraction form
    439.80/604.11 = 437.64/x
  3. Step 3: Cross multiply
    439.80x = 604.11 × 437.64
  4. Step 4: Simplify right side
    439.80x = 264,382.70
  5. Step 5: Solve for x
    x = 264,382.70/439.80
  6. Step 6: Final answer
    x = 601.14

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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.