Home / 809,960.20-1,213,190.70-669,992.20

Finding the Fourth Proportional to 809,960.20, 1,213,190.70 and 669,992.20

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Solution

The fourth proportional to 809,960.20, 1,213,190.70 and 669,992.20 is: 1,003,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,960.20 : 1,213,190.70 = 669,992.20 : x
  2. Step 2: Convert to fraction form
    809,960.20/1,213,190.70 = 669,992.20/x
  3. Step 3: Cross multiply
    809,960.20x = 1,213,190.70 × 669,992.20
  4. Step 4: Simplify right side
    809,960.20x = 812,828,306,112.54
  5. Step 5: Solve for x
    x = 812,828,306,112.54/809,960.20
  6. Step 6: Final answer
    x = 1,003,541.05

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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.