Home / 1,219.50-1,829.25-450.18

Finding the Fourth Proportional to 1,219.50, 1,829.25 and 450.18

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Solution

The fourth proportional to 1,219.50, 1,829.25 and 450.18 is: 675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.50 : 1,829.25 = 450.18 : x
  2. Step 2: Convert to fraction form
    1,219.50/1,829.25 = 450.18/x
  3. Step 3: Cross multiply
    1,219.50x = 1,829.25 × 450.18
  4. Step 4: Simplify right side
    1,219.50x = 823,491.77
  5. Step 5: Solve for x
    x = 823,491.77/1,219.50
  6. Step 6: Final answer
    x = 675.27

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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.