Home / 3,919,112.79-5,878,698.35-1,079,380.77

Finding the Fourth Proportional to 3,919,112.79, 5,878,698.35 and 1,079,380.77

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Solution

The fourth proportional to 3,919,112.79, 5,878,698.35 and 1,079,380.77 is: 1,619,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,112.79 : 5,878,698.35 = 1,079,380.77 : x
  2. Step 2: Convert to fraction form
    3,919,112.79/5,878,698.35 = 1,079,380.77/x
  3. Step 3: Cross multiply
    3,919,112.79x = 5,878,698.35 × 1,079,380.77
  4. Step 4: Simplify right side
    3,919,112.79x = 6,345,353,951,620.73
  5. Step 5: Solve for x
    x = 6,345,353,951,620.73/3,919,112.79
  6. Step 6: Final answer
    x = 1,619,079.19

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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.