Home / 681,043.12-939,845.83-375,120.61

Finding the Fourth Proportional to 681,043.12, 939,845.83 and 375,120.61

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Solution

The fourth proportional to 681,043.12, 939,845.83 and 375,120.61 is: 517,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,043.12 : 939,845.83 = 375,120.61 : x
  2. Step 2: Convert to fraction form
    681,043.12/939,845.83 = 375,120.61/x
  3. Step 3: Cross multiply
    681,043.12x = 939,845.83 × 375,120.61
  4. Step 4: Simplify right side
    681,043.12x = 352,555,541,055.56
  5. Step 5: Solve for x
    x = 352,555,541,055.56/681,043.12
  6. Step 6: Final answer
    x = 517,669.93

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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.