Home / 1,317.44-1,976.36-495.77

Finding the Fourth Proportional to 1,317.44, 1,976.36 and 495.77

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Solution

The fourth proportional to 1,317.44, 1,976.36 and 495.77 is: 743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.44 : 1,976.36 = 495.77 : x
  2. Step 2: Convert to fraction form
    1,317.44/1,976.36 = 495.77/x
  3. Step 3: Cross multiply
    1,317.44x = 1,976.36 × 495.77
  4. Step 4: Simplify right side
    1,317.44x = 979,807.64
  5. Step 5: Solve for x
    x = 979,807.64/1,317.44
  6. Step 6: Final answer
    x = 743.72

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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.