Home / 447,121.92-670,687.74-131,584.80

Finding the Fourth Proportional to 447,121.92, 670,687.74 and 131,584.80

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Solution

The fourth proportional to 447,121.92, 670,687.74 and 131,584.80 is: 197,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,121.92 : 670,687.74 = 131,584.80 : x
  2. Step 2: Convert to fraction form
    447,121.92/670,687.74 = 131,584.80/x
  3. Step 3: Cross multiply
    447,121.92x = 670,687.74 × 131,584.80
  4. Step 4: Simplify right side
    447,121.92x = 88,252,312,130.35
  5. Step 5: Solve for x
    x = 88,252,312,130.35/447,121.92
  6. Step 6: Final answer
    x = 197,378.63

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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.