Home / 859,917.87-1,183,976.19-780,201.72

Finding the Fourth Proportional to 859,917.87, 1,183,976.19 and 780,201.72

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Solution

The fourth proportional to 859,917.87, 1,183,976.19 and 780,201.72 is: 1,074,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,917.87 : 1,183,976.19 = 780,201.72 : x
  2. Step 2: Convert to fraction form
    859,917.87/1,183,976.19 = 780,201.72/x
  3. Step 3: Cross multiply
    859,917.87x = 1,183,976.19 × 780,201.72
  4. Step 4: Simplify right side
    859,917.87x = 923,740,259,877.05
  5. Step 5: Solve for x
    x = 923,740,259,877.05/859,917.87
  6. Step 6: Final answer
    x = 1,074,219.17

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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.