Home / 1,025,190.78-1,538,115.21-492,750.42

Finding the Fourth Proportional to 1,025,190.78, 1,538,115.21 and 492,750.42

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Solution

The fourth proportional to 1,025,190.78, 1,538,115.21 and 492,750.42 is: 739,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,190.78 : 1,538,115.21 = 492,750.42 : x
  2. Step 2: Convert to fraction form
    1,025,190.78/1,538,115.21 = 492,750.42/x
  3. Step 3: Cross multiply
    1,025,190.78x = 1,538,115.21 × 492,750.42
  4. Step 4: Simplify right side
    1,025,190.78x = 757,906,915,735.89
  5. Step 5: Solve for x
    x = 757,906,915,735.89/1,025,190.78
  6. Step 6: Final answer
    x = 739,283.78

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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.