Home / 378,829.58-522,874.17-217,777.95

Finding the Fourth Proportional to 378,829.58, 522,874.17 and 217,777.95

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Solution

The fourth proportional to 378,829.58, 522,874.17 and 217,777.95 is: 300,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,829.58 : 522,874.17 = 217,777.95 : x
  2. Step 2: Convert to fraction form
    378,829.58/522,874.17 = 217,777.95/x
  3. Step 3: Cross multiply
    378,829.58x = 522,874.17 × 217,777.95
  4. Step 4: Simplify right side
    378,829.58x = 113,870,464,850.55
  5. Step 5: Solve for x
    x = 113,870,464,850.55/378,829.58
  6. Step 6: Final answer
    x = 300,584.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.