Home / 394,934.37-545,007.77-213,645.85

Finding the Fourth Proportional to 394,934.37, 545,007.77 and 213,645.85

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Solution

The fourth proportional to 394,934.37, 545,007.77 and 213,645.85 is: 294,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,934.37 : 545,007.77 = 213,645.85 : x
  2. Step 2: Convert to fraction form
    394,934.37/545,007.77 = 213,645.85/x
  3. Step 3: Cross multiply
    394,934.37x = 545,007.77 × 213,645.85
  4. Step 4: Simplify right side
    394,934.37x = 116,438,647,449.85
  5. Step 5: Solve for x
    x = 116,438,647,449.85/394,934.37
  6. Step 6: Final answer
    x = 294,830.37

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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.