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Finding the Fourth Proportional to 523.96, 784.08 and 443.74

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Solution

The fourth proportional to 523.96, 784.08 and 443.74 is: 664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.96 : 784.08 = 443.74 : x
  2. Step 2: Convert to fraction form
    523.96/784.08 = 443.74/x
  3. Step 3: Cross multiply
    523.96x = 784.08 × 443.74
  4. Step 4: Simplify right side
    523.96x = 347,927.66
  5. Step 5: Solve for x
    x = 347,927.66/523.96
  6. Step 6: Final answer
    x = 664.03

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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.