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Finding the Fourth Proportional to 883.81, 1,326.52 and 451.27

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Solution

The fourth proportional to 883.81, 1,326.52 and 451.27 is: 677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.81 : 1,326.52 = 451.27 : x
  2. Step 2: Convert to fraction form
    883.81/1,326.52 = 451.27/x
  3. Step 3: Cross multiply
    883.81x = 1,326.52 × 451.27
  4. Step 4: Simplify right side
    883.81x = 598,612.05
  5. Step 5: Solve for x
    x = 598,612.05/883.81
  6. Step 6: Final answer
    x = 677.31

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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.