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Finding the Fourth Proportional to 1,183.97, 1,776.73 and 453.56

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Solution

The fourth proportional to 1,183.97, 1,776.73 and 453.56 is: 680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.97 : 1,776.73 = 453.56 : x
  2. Step 2: Convert to fraction form
    1,183.97/1,776.73 = 453.56/x
  3. Step 3: Cross multiply
    1,183.97x = 1,776.73 × 453.56
  4. Step 4: Simplify right side
    1,183.97x = 805,853.66
  5. Step 5: Solve for x
    x = 805,853.66/1,183.97
  6. Step 6: Final answer
    x = 680.64

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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.