Home / 3,887,682.40-5,812,861.20-2,879,912.80

Finding the Fourth Proportional to 3,887,682.40, 5,812,861.20 and 2,879,912.80

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Solution

The fourth proportional to 3,887,682.40, 5,812,861.20 and 2,879,912.80 is: 4,306,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,682.40 : 5,812,861.20 = 2,879,912.80 : x
  2. Step 2: Convert to fraction form
    3,887,682.40/5,812,861.20 = 2,879,912.80/x
  3. Step 3: Cross multiply
    3,887,682.40x = 5,812,861.20 × 2,879,912.80
  4. Step 4: Simplify right side
    3,887,682.40x = 16,740,533,374,503.36
  5. Step 5: Solve for x
    x = 16,740,533,374,503.36/3,887,682.40
  6. Step 6: Final answer
    x = 4,306,044.49

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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.