Home / 2,280,163.80-3,420,245.70-931,440.90

Finding the Fourth Proportional to 2,280,163.80, 3,420,245.70 and 931,440.90

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Solution

The fourth proportional to 2,280,163.80, 3,420,245.70 and 931,440.90 is: 1,397,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280,163.80 : 3,420,245.70 = 931,440.90 : x
  2. Step 2: Convert to fraction form
    2,280,163.80/3,420,245.70 = 931,440.90/x
  3. Step 3: Cross multiply
    2,280,163.80x = 3,420,245.70 × 931,440.90
  4. Step 4: Simplify right side
    2,280,163.80x = 3,185,756,733,029.13
  5. Step 5: Solve for x
    x = 3,185,756,733,029.13/2,280,163.80
  6. Step 6: Final answer
    x = 1,397,161.35

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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.