Home / 1,361,811.35-1,879,238.94-780,617.73

Finding the Fourth Proportional to 1,361,811.35, 1,879,238.94 and 780,617.73

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Solution

The fourth proportional to 1,361,811.35, 1,879,238.94 and 780,617.73 is: 1,077,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,811.35 : 1,879,238.94 = 780,617.73 : x
  2. Step 2: Convert to fraction form
    1,361,811.35/1,879,238.94 = 780,617.73/x
  3. Step 3: Cross multiply
    1,361,811.35x = 1,879,238.94 × 780,617.73
  4. Step 4: Simplify right side
    1,361,811.35x = 1,466,967,239,793.63
  5. Step 5: Solve for x
    x = 1,466,967,239,793.63/1,361,811.35
  6. Step 6: Final answer
    x = 1,077,217.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.