Home / 780,361.92-1,170,544.37-300,815.54

Finding the Fourth Proportional to 780,361.92, 1,170,544.37 and 300,815.54

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Solution

The fourth proportional to 780,361.92, 1,170,544.37 and 300,815.54 is: 451,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,361.92 : 1,170,544.37 = 300,815.54 : x
  2. Step 2: Convert to fraction form
    780,361.92/1,170,544.37 = 300,815.54/x
  3. Step 3: Cross multiply
    780,361.92x = 1,170,544.37 × 300,815.54
  4. Step 4: Simplify right side
    780,361.92x = 352,117,940,433.91
  5. Step 5: Solve for x
    x = 352,117,940,433.91/780,361.92
  6. Step 6: Final answer
    x = 451,223.89

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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.