Home / 681,705.21-1,022,447.06-321,875.36

Finding the Fourth Proportional to 681,705.21, 1,022,447.06 and 321,875.36

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Solution

The fourth proportional to 681,705.21, 1,022,447.06 and 321,875.36 is: 482,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,705.21 : 1,022,447.06 = 321,875.36 : x
  2. Step 2: Convert to fraction form
    681,705.21/1,022,447.06 = 321,875.36/x
  3. Step 3: Cross multiply
    681,705.21x = 1,022,447.06 × 321,875.36
  4. Step 4: Simplify right side
    681,705.21x = 329,100,518,879.25
  5. Step 5: Solve for x
    x = 329,100,518,879.25/681,705.21
  6. Step 6: Final answer
    x = 482,760.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.