Home / 1,230.36-1,844.31-449.70

Finding the Fourth Proportional to 1,230.36, 1,844.31 and 449.70

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Solution

The fourth proportional to 1,230.36, 1,844.31 and 449.70 is: 674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.36 : 1,844.31 = 449.70 : x
  2. Step 2: Convert to fraction form
    1,230.36/1,844.31 = 449.70/x
  3. Step 3: Cross multiply
    1,230.36x = 1,844.31 × 449.70
  4. Step 4: Simplify right side
    1,230.36x = 829,386.21
  5. Step 5: Solve for x
    x = 829,386.21/1,230.36
  6. Step 6: Final answer
    x = 674.10

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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.