Home / 447,013.69-670,520.34-131,470.61

Finding the Fourth Proportional to 447,013.69, 670,520.34 and 131,470.61

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Solution

The fourth proportional to 447,013.69, 670,520.34 and 131,470.61 is: 197,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,013.69 : 670,520.34 = 131,470.61 : x
  2. Step 2: Convert to fraction form
    447,013.69/670,520.34 = 131,470.61/x
  3. Step 3: Cross multiply
    447,013.69x = 670,520.34 × 131,470.61
  4. Step 4: Simplify right side
    447,013.69x = 88,153,718,117.21
  5. Step 5: Solve for x
    x = 88,153,718,117.21/447,013.69
  6. Step 6: Final answer
    x = 197,205.86

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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.