Home / 840,003.91-1,260,010.42-208,917.72

Finding the Fourth Proportional to 840,003.91, 1,260,010.42 and 208,917.72

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Solution

The fourth proportional to 840,003.91, 1,260,010.42 and 208,917.72 is: 313,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,003.91 : 1,260,010.42 = 208,917.72 : x
  2. Step 2: Convert to fraction form
    840,003.91/1,260,010.42 = 208,917.72/x
  3. Step 3: Cross multiply
    840,003.91x = 1,260,010.42 × 208,917.72
  4. Step 4: Simplify right side
    840,003.91x = 263,238,503,600.35
  5. Step 5: Solve for x
    x = 263,238,503,600.35/840,003.91
  6. Step 6: Final answer
    x = 313,377.71

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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.