Home / 2,162,375.30-3,245,178.64-815,865.86

Finding the Fourth Proportional to 2,162,375.30, 3,245,178.64 and 815,865.86

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Solution

The fourth proportional to 2,162,375.30, 3,245,178.64 and 815,865.86 is: 1,224,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162,375.30 : 3,245,178.64 = 815,865.86 : x
  2. Step 2: Convert to fraction form
    2,162,375.30/3,245,178.64 = 815,865.86/x
  3. Step 3: Cross multiply
    2,162,375.30x = 3,245,178.64 × 815,865.86
  4. Step 4: Simplify right side
    2,162,375.30x = 2,647,630,461,977.23
  5. Step 5: Solve for x
    x = 2,647,630,461,977.23/2,162,375.30
  6. Step 6: Final answer
    x = 1,224,408.39

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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.