Home / 2,019,616.20-3,027,917.70-1,220,729.40

Finding the Fourth Proportional to 2,019,616.20, 3,027,917.70 and 1,220,729.40

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Solution

The fourth proportional to 2,019,616.20, 3,027,917.70 and 1,220,729.40 is: 1,830,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,616.20 : 3,027,917.70 = 1,220,729.40 : x
  2. Step 2: Convert to fraction form
    2,019,616.20/3,027,917.70 = 1,220,729.40/x
  3. Step 3: Cross multiply
    2,019,616.20x = 3,027,917.70 × 1,220,729.40
  4. Step 4: Simplify right side
    2,019,616.20x = 3,696,268,157,170.38
  5. Step 5: Solve for x
    x = 3,696,268,157,170.38/2,019,616.20
  6. Step 6: Final answer
    x = 1,830,183.46

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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.