Home / 490,943.25-677,505.78-276,081.39

Finding the Fourth Proportional to 490,943.25, 677,505.78 and 276,081.39

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Solution

The fourth proportional to 490,943.25, 677,505.78 and 276,081.39 is: 380,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,943.25 : 677,505.78 = 276,081.39 : x
  2. Step 2: Convert to fraction form
    490,943.25/677,505.78 = 276,081.39/x
  3. Step 3: Cross multiply
    490,943.25x = 677,505.78 × 276,081.39
  4. Step 4: Simplify right side
    490,943.25x = 187,046,737,475.43
  5. Step 5: Solve for x
    x = 187,046,737,475.43/490,943.25
  6. Step 6: Final answer
    x = 380,994.62

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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.