Home / 490,895.22-677,439.45-276,033.40

Finding the Fourth Proportional to 490,895.22, 677,439.45 and 276,033.40

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Solution

The fourth proportional to 490,895.22, 677,439.45 and 276,033.40 is: 380,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,895.22 : 677,439.45 = 276,033.40 : x
  2. Step 2: Convert to fraction form
    490,895.22/677,439.45 = 276,033.40/x
  3. Step 3: Cross multiply
    490,895.22x = 677,439.45 × 276,033.40
  4. Step 4: Simplify right side
    490,895.22x = 186,995,914,489.30
  5. Step 5: Solve for x
    x = 186,995,914,489.30/490,895.22
  6. Step 6: Final answer
    x = 380,928.37

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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.