Home / 815,198.34-1,222,404.12-341,756.58

Finding the Fourth Proportional to 815,198.34, 1,222,404.12 and 341,756.58

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Solution

The fourth proportional to 815,198.34, 1,222,404.12 and 341,756.58 is: 512,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,198.34 : 1,222,404.12 = 341,756.58 : x
  2. Step 2: Convert to fraction form
    815,198.34/1,222,404.12 = 341,756.58/x
  3. Step 3: Cross multiply
    815,198.34x = 1,222,404.12 × 341,756.58
  4. Step 4: Simplify right side
    815,198.34x = 417,764,651,429.11
  5. Step 5: Solve for x
    x = 417,764,651,429.11/815,198.34
  6. Step 6: Final answer
    x = 512,469.95

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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.