Home / 1,230.49-1,844.31-499.26

Finding the Fourth Proportional to 1,230.49, 1,844.31 and 499.26

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Solution

The fourth proportional to 1,230.49, 1,844.31 and 499.26 is: 748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.49 : 1,844.31 = 499.26 : x
  2. Step 2: Convert to fraction form
    1,230.49/1,844.31 = 499.26/x
  3. Step 3: Cross multiply
    1,230.49x = 1,844.31 × 499.26
  4. Step 4: Simplify right side
    1,230.49x = 920,790.21
  5. Step 5: Solve for x
    x = 920,790.21/1,230.49
  6. Step 6: Final answer
    x = 748.31

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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.