Home / 2,080,120.40-3,120,180.60-1,015,845.20

Finding the Fourth Proportional to 2,080,120.40, 3,120,180.60 and 1,015,845.20

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Solution

The fourth proportional to 2,080,120.40, 3,120,180.60 and 1,015,845.20 is: 1,523,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,120.40 : 3,120,180.60 = 1,015,845.20 : x
  2. Step 2: Convert to fraction form
    2,080,120.40/3,120,180.60 = 1,015,845.20/x
  3. Step 3: Cross multiply
    2,080,120.40x = 3,120,180.60 × 1,015,845.20
  4. Step 4: Simplify right side
    2,080,120.40x = 3,169,620,485,643.12
  5. Step 5: Solve for x
    x = 3,169,620,485,643.12/2,080,120.40
  6. Step 6: Final answer
    x = 1,523,767.80

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1.5x scale

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.