Home / 3,280,640.40-4,920,960.60-2,087,850.60

Finding the Fourth Proportional to 3,280,640.40, 4,920,960.60 and 2,087,850.60

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Solution

The fourth proportional to 3,280,640.40, 4,920,960.60 and 2,087,850.60 is: 3,131,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,640.40 : 4,920,960.60 = 2,087,850.60 : x
  2. Step 2: Convert to fraction form
    3,280,640.40/4,920,960.60 = 2,087,850.60/x
  3. Step 3: Cross multiply
    3,280,640.40x = 4,920,960.60 × 2,087,850.60
  4. Step 4: Simplify right side
    3,280,640.40x = 10,274,230,541,286.36
  5. Step 5: Solve for x
    x = 10,274,230,541,286.36/3,280,640.40
  6. Step 6: Final answer
    x = 3,131,775.90

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1.5x scale

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.