Home / 1,226.09-1,839.13-495.49

Finding the Fourth Proportional to 1,226.09, 1,839.13 and 495.49

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Solution

The fourth proportional to 1,226.09, 1,839.13 and 495.49 is: 743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.09 : 1,839.13 = 495.49 : x
  2. Step 2: Convert to fraction form
    1,226.09/1,839.13 = 495.49/x
  3. Step 3: Cross multiply
    1,226.09x = 1,839.13 × 495.49
  4. Step 4: Simplify right side
    1,226.09x = 911,274.70
  5. Step 5: Solve for x
    x = 911,274.70/1,226.09
  6. Step 6: Final answer
    x = 743.24

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.