Home / 1,993,945.20-2,990,917.80-1,151,512.80

Finding the Fourth Proportional to 1,993,945.20, 2,990,917.80 and 1,151,512.80

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Solution

The fourth proportional to 1,993,945.20, 2,990,917.80 and 1,151,512.80 is: 1,727,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,945.20 : 2,990,917.80 = 1,151,512.80 : x
  2. Step 2: Convert to fraction form
    1,993,945.20/2,990,917.80 = 1,151,512.80/x
  3. Step 3: Cross multiply
    1,993,945.20x = 2,990,917.80 × 1,151,512.80
  4. Step 4: Simplify right side
    1,993,945.20x = 3,444,080,130,447.84
  5. Step 5: Solve for x
    x = 3,444,080,130,447.84/1,993,945.20
  6. Step 6: Final answer
    x = 1,727,269.20

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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.