Home / 1,225.49-1,839.54-495.54

Finding the Fourth Proportional to 1,225.49, 1,839.54 and 495.54

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Solution

The fourth proportional to 1,225.49, 1,839.54 and 495.54 is: 743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.49 : 1,839.54 = 495.54 : x
  2. Step 2: Convert to fraction form
    1,225.49/1,839.54 = 495.54/x
  3. Step 3: Cross multiply
    1,225.49x = 1,839.54 × 495.54
  4. Step 4: Simplify right side
    1,225.49x = 911,565.65
  5. Step 5: Solve for x
    x = 911,565.65/1,225.49
  6. Step 6: Final answer
    x = 743.84

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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.