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Finding the Fourth Proportional to 441.24, 611.74 and 416.64

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Solution

The fourth proportional to 441.24, 611.74 and 416.64 is: 577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.24 : 611.74 = 416.64 : x
  2. Step 2: Convert to fraction form
    441.24/611.74 = 416.64/x
  3. Step 3: Cross multiply
    441.24x = 611.74 × 416.64
  4. Step 4: Simplify right side
    441.24x = 254,873.27
  5. Step 5: Solve for x
    x = 254,873.27/441.24
  6. Step 6: Final answer
    x = 577.63

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.