Home / 807,843.60-1,211,761.71-208,753.83

Finding the Fourth Proportional to 807,843.60, 1,211,761.71 and 208,753.83

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Solution

The fourth proportional to 807,843.60, 1,211,761.71 and 208,753.83 is: 313,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,843.60 : 1,211,761.71 = 208,753.83 : x
  2. Step 2: Convert to fraction form
    807,843.60/1,211,761.71 = 208,753.83/x
  3. Step 3: Cross multiply
    807,843.60x = 1,211,761.71 × 208,753.83
  4. Step 4: Simplify right side
    807,843.60x = 252,959,898,009.85
  5. Step 5: Solve for x
    x = 252,959,898,009.85/807,843.60
  6. Step 6: Final answer
    x = 313,129.79

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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.