Home / 2,099,993.80-3,149,990.70-770,816.20

Finding the Fourth Proportional to 2,099,993.80, 3,149,990.70 and 770,816.20

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Solution

The fourth proportional to 2,099,993.80, 3,149,990.70 and 770,816.20 is: 1,156,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,993.80 : 3,149,990.70 = 770,816.20 : x
  2. Step 2: Convert to fraction form
    2,099,993.80/3,149,990.70 = 770,816.20/x
  3. Step 3: Cross multiply
    2,099,993.80x = 3,149,990.70 × 770,816.20
  4. Step 4: Simplify right side
    2,099,993.80x = 2,428,063,861,409.34
  5. Step 5: Solve for x
    x = 2,428,063,861,409.34/2,099,993.80
  6. Step 6: Final answer
    x = 1,156,224.30

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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.