Home / 490,997.37-677,569.85-276,137.43

Finding the Fourth Proportional to 490,997.37, 677,569.85 and 276,137.43

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Solution

The fourth proportional to 490,997.37, 677,569.85 and 276,137.43 is: 381,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,997.37 : 677,569.85 = 276,137.43 : x
  2. Step 2: Convert to fraction form
    490,997.37/677,569.85 = 276,137.43/x
  3. Step 3: Cross multiply
    490,997.37x = 677,569.85 × 276,137.43
  4. Step 4: Simplify right side
    490,997.37x = 187,102,395,655.78
  5. Step 5: Solve for x
    x = 187,102,395,655.78/490,997.37
  6. Step 6: Final answer
    x = 381,065.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.