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Finding the Fourth Proportional to 447,248.52, 670,736.22 and 127,426.50

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Solution

The fourth proportional to 447,248.52, 670,736.22 and 127,426.50 is: 191,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,248.52 : 670,736.22 = 127,426.50 : x
  2. Step 2: Convert to fraction form
    447,248.52/670,736.22 = 127,426.50/x
  3. Step 3: Cross multiply
    447,248.52x = 670,736.22 × 127,426.50
  4. Step 4: Simplify right side
    447,248.52x = 85,469,568,937.83
  5. Step 5: Solve for x
    x = 85,469,568,937.83/447,248.52
  6. Step 6: Final answer
    x = 191,100.84

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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.