Home / 874,359.54-1,311,571.68-305,629.38

Finding the Fourth Proportional to 874,359.54, 1,311,571.68 and 305,629.38

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Solution

The fourth proportional to 874,359.54, 1,311,571.68 and 305,629.38 is: 458,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,359.54 : 1,311,571.68 = 305,629.38 : x
  2. Step 2: Convert to fraction form
    874,359.54/1,311,571.68 = 305,629.38/x
  3. Step 3: Cross multiply
    874,359.54x = 1,311,571.68 × 305,629.38
  4. Step 4: Simplify right side
    874,359.54x = 400,854,839,383.96
  5. Step 5: Solve for x
    x = 400,854,839,383.96/874,359.54
  6. Step 6: Final answer
    x = 458,455.38

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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.