Home / 1,079,520.35-1,619,280.32-321,372.90

Finding the Fourth Proportional to 1,079,520.35, 1,619,280.32 and 321,372.90

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Solution

The fourth proportional to 1,079,520.35, 1,619,280.32 and 321,372.90 is: 482,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,520.35 : 1,619,280.32 = 321,372.90 : x
  2. Step 2: Convert to fraction form
    1,079,520.35/1,619,280.32 = 321,372.90/x
  3. Step 3: Cross multiply
    1,079,520.35x = 1,619,280.32 × 321,372.90
  4. Step 4: Simplify right side
    1,079,520.35x = 520,392,810,744.46
  5. Step 5: Solve for x
    x = 520,392,810,744.46/1,079,520.35
  6. Step 6: Final answer
    x = 482,059.29

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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.