Home / 481,736.20-664,836.78-266,943.64

Finding the Fourth Proportional to 481,736.20, 664,836.78 and 266,943.64

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Solution

The fourth proportional to 481,736.20, 664,836.78 and 266,943.64 is: 368,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,736.20 : 664,836.78 = 266,943.64 : x
  2. Step 2: Convert to fraction form
    481,736.20/664,836.78 = 266,943.64/x
  3. Step 3: Cross multiply
    481,736.20x = 664,836.78 × 266,943.64
  4. Step 4: Simplify right side
    481,736.20x = 177,473,950,059.08
  5. Step 5: Solve for x
    x = 177,473,950,059.08/481,736.20
  6. Step 6: Final answer
    x = 368,404.84

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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.