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Finding the Fourth Proportional to 1,216.68, 1,823.67 and 523.23

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Solution

The fourth proportional to 1,216.68, 1,823.67 and 523.23 is: 784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.68 : 1,823.67 = 523.23 : x
  2. Step 2: Convert to fraction form
    1,216.68/1,823.67 = 523.23/x
  3. Step 3: Cross multiply
    1,216.68x = 1,823.67 × 523.23
  4. Step 4: Simplify right side
    1,216.68x = 954,198.85
  5. Step 5: Solve for x
    x = 954,198.85/1,216.68
  6. Step 6: Final answer
    x = 784.26

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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.