Home / 681,829.41-940,716.05-395,292.30

Finding the Fourth Proportional to 681,829.41, 940,716.05 and 395,292.30

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Solution

The fourth proportional to 681,829.41, 940,716.05 and 395,292.30 is: 545,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,829.41 : 940,716.05 = 395,292.30 : x
  2. Step 2: Convert to fraction form
    681,829.41/940,716.05 = 395,292.30/x
  3. Step 3: Cross multiply
    681,829.41x = 940,716.05 × 395,292.30
  4. Step 4: Simplify right side
    681,829.41x = 371,857,809,074.95
  5. Step 5: Solve for x
    x = 371,857,809,074.95/681,829.41
  6. Step 6: Final answer
    x = 545,382.47

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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.