Home / 787,369.32-1,180,481.82-313,912.68

Finding the Fourth Proportional to 787,369.32, 1,180,481.82 and 313,912.68

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Solution

The fourth proportional to 787,369.32, 1,180,481.82 and 313,912.68 is: 470,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,369.32 : 1,180,481.82 = 313,912.68 : x
  2. Step 2: Convert to fraction form
    787,369.32/1,180,481.82 = 313,912.68/x
  3. Step 3: Cross multiply
    787,369.32x = 1,180,481.82 × 313,912.68
  4. Step 4: Simplify right side
    787,369.32x = 370,568,211,807.48
  5. Step 5: Solve for x
    x = 370,568,211,807.48/787,369.32
  6. Step 6: Final answer
    x = 470,640.91

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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.