Home / 2,619,380.58-3,929,071.86-1,178,380.77

Finding the Fourth Proportional to 2,619,380.58, 3,929,071.86 and 1,178,380.77

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Solution

The fourth proportional to 2,619,380.58, 3,929,071.86 and 1,178,380.77 is: 1,767,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,380.58 : 3,929,071.86 = 1,178,380.77 : x
  2. Step 2: Convert to fraction form
    2,619,380.58/3,929,071.86 = 1,178,380.77/x
  3. Step 3: Cross multiply
    2,619,380.58x = 3,929,071.86 × 1,178,380.77
  4. Step 4: Simplify right side
    2,619,380.58x = 4,629,942,723,772.13
  5. Step 5: Solve for x
    x = 4,629,942,723,772.13/2,619,380.58
  6. Step 6: Final answer
    x = 1,767,571.60

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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.