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Finding the Fourth Proportional to 523.44, 784.80 and 330.84

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Solution

The fourth proportional to 523.44, 784.80 and 330.84 is: 496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.44 : 784.80 = 330.84 : x
  2. Step 2: Convert to fraction form
    523.44/784.80 = 330.84/x
  3. Step 3: Cross multiply
    523.44x = 784.80 × 330.84
  4. Step 4: Simplify right side
    523.44x = 259,643.23
  5. Step 5: Solve for x
    x = 259,643.23/523.44
  6. Step 6: Final answer
    x = 496.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.