Home / 827,470.92-1,240,049.16-447,571.20

Finding the Fourth Proportional to 827,470.92, 1,240,049.16 and 447,571.20

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Solution

The fourth proportional to 827,470.92, 1,240,049.16 and 447,571.20 is: 670,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,470.92 : 1,240,049.16 = 447,571.20 : x
  2. Step 2: Convert to fraction form
    827,470.92/1,240,049.16 = 447,571.20/x
  3. Step 3: Cross multiply
    827,470.92x = 1,240,049.16 × 447,571.20
  4. Step 4: Simplify right side
    827,470.92x = 555,010,290,600.19
  5. Step 5: Solve for x
    x = 555,010,290,600.19/827,470.92
  6. Step 6: Final answer
    x = 670,730.87

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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.