Home / 815,198.86-1,222,953.62-328,919.58

Finding the Fourth Proportional to 815,198.86, 1,222,953.62 and 328,919.58

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Solution

The fourth proportional to 815,198.86, 1,222,953.62 and 328,919.58 is: 493,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,198.86 : 1,222,953.62 = 328,919.58 : x
  2. Step 2: Convert to fraction form
    815,198.86/1,222,953.62 = 328,919.58/x
  3. Step 3: Cross multiply
    815,198.86x = 1,222,953.62 × 328,919.58
  4. Step 4: Simplify right side
    815,198.86x = 402,253,389,405.28
  5. Step 5: Solve for x
    x = 402,253,389,405.28/815,198.86
  6. Step 6: Final answer
    x = 493,442.04

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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.