Home / 3,280,778.40-4,921,167.60-2,087,988.60

Finding the Fourth Proportional to 3,280,778.40, 4,921,167.60 and 2,087,988.60

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Solution

The fourth proportional to 3,280,778.40, 4,921,167.60 and 2,087,988.60 is: 3,131,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,778.40 : 4,921,167.60 = 2,087,988.60 : x
  2. Step 2: Convert to fraction form
    3,280,778.40/4,921,167.60 = 2,087,988.60/x
  3. Step 3: Cross multiply
    3,280,778.40x = 4,921,167.60 × 2,087,988.60
  4. Step 4: Simplify right side
    3,280,778.40x = 10,275,341,847,489.36
  5. Step 5: Solve for x
    x = 10,275,341,847,489.36/3,280,778.40
  6. Step 6: Final answer
    x = 3,131,982.90

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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.