Home / 1,120,664.70-1,681,009.20-321,952.86

Finding the Fourth Proportional to 1,120,664.70, 1,681,009.20 and 321,952.86

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Solution

The fourth proportional to 1,120,664.70, 1,681,009.20 and 321,952.86 is: 482,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,664.70 : 1,681,009.20 = 321,952.86 : x
  2. Step 2: Convert to fraction form
    1,120,664.70/1,681,009.20 = 321,952.86/x
  3. Step 3: Cross multiply
    1,120,664.70x = 1,681,009.20 × 321,952.86
  4. Step 4: Simplify right side
    1,120,664.70x = 541,205,719,626.31
  5. Step 5: Solve for x
    x = 541,205,719,626.31/1,120,664.70
  6. Step 6: Final answer
    x = 482,932.78

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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.