Home / 490,914.09-736,584.36-266,433.12

Finding the Fourth Proportional to 490,914.09, 736,584.36 and 266,433.12

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Solution

The fourth proportional to 490,914.09, 736,584.36 and 266,433.12 is: 399,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,914.09 : 736,584.36 = 266,433.12 : x
  2. Step 2: Convert to fraction form
    490,914.09/736,584.36 = 266,433.12/x
  3. Step 3: Cross multiply
    490,914.09x = 736,584.36 × 266,433.12
  4. Step 4: Simplify right side
    490,914.09x = 196,250,469,178.00
  5. Step 5: Solve for x
    x = 196,250,469,178.00/490,914.09
  6. Step 6: Final answer
    x = 399,765.40

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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.