Home / 490,984.36-677,585.22-276,137.12

Finding the Fourth Proportional to 490,984.36, 677,585.22 and 276,137.12

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Solution

The fourth proportional to 490,984.36, 677,585.22 and 276,137.12 is: 381,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,984.36 : 677,585.22 = 276,137.12 : x
  2. Step 2: Convert to fraction form
    490,984.36/677,585.22 = 276,137.12/x
  3. Step 3: Cross multiply
    490,984.36x = 677,585.22 × 276,137.12
  4. Step 4: Simplify right side
    490,984.36x = 187,106,431,863.82
  5. Step 5: Solve for x
    x = 187,106,431,863.82/490,984.36
  6. Step 6: Final answer
    x = 381,084.30

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1.5x scale

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.