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Finding the Fourth Proportional to 1,228.58, 1,843.01 and 448.82

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Solution

The fourth proportional to 1,228.58, 1,843.01 and 448.82 is: 673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.58 : 1,843.01 = 448.82 : x
  2. Step 2: Convert to fraction form
    1,228.58/1,843.01 = 448.82/x
  3. Step 3: Cross multiply
    1,228.58x = 1,843.01 × 448.82
  4. Step 4: Simplify right side
    1,228.58x = 827,177.50
  5. Step 5: Solve for x
    x = 827,177.50/1,228.58
  6. Step 6: Final answer
    x = 673.28

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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.