Home / 827,408.40-1,241,112.60-788,917.20

Finding the Fourth Proportional to 827,408.40, 1,241,112.60 and 788,917.20

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Solution

The fourth proportional to 827,408.40, 1,241,112.60 and 788,917.20 is: 1,183,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,408.40 : 1,241,112.60 = 788,917.20 : x
  2. Step 2: Convert to fraction form
    827,408.40/1,241,112.60 = 788,917.20/x
  3. Step 3: Cross multiply
    827,408.40x = 1,241,112.60 × 788,917.20
  4. Step 4: Simplify right side
    827,408.40x = 979,135,077,276.72
  5. Step 5: Solve for x
    x = 979,135,077,276.72/827,408.40
  6. Step 6: Final answer
    x = 1,183,375.80

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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.