Home / 391,619.58-540,473.22-219,566.94

Finding the Fourth Proportional to 391,619.58, 540,473.22 and 219,566.94

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Solution

The fourth proportional to 391,619.58, 540,473.22 and 219,566.94 is: 303,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,619.58 : 540,473.22 = 219,566.94 : x
  2. Step 2: Convert to fraction form
    391,619.58/540,473.22 = 219,566.94/x
  3. Step 3: Cross multiply
    391,619.58x = 540,473.22 × 219,566.94
  4. Step 4: Simplify right side
    391,619.58x = 118,670,051,067.35
  5. Step 5: Solve for x
    x = 118,670,051,067.35/391,619.58
  6. Step 6: Final answer
    x = 303,023.79

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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.