Home / 2,784,280.80-4,176,421.20-2,120,728.80

Finding the Fourth Proportional to 2,784,280.80, 4,176,421.20 and 2,120,728.80

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Solution

The fourth proportional to 2,784,280.80, 4,176,421.20 and 2,120,728.80 is: 3,181,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,280.80 : 4,176,421.20 = 2,120,728.80 : x
  2. Step 2: Convert to fraction form
    2,784,280.80/4,176,421.20 = 2,120,728.80/x
  3. Step 3: Cross multiply
    2,784,280.80x = 4,176,421.20 × 2,120,728.80
  4. Step 4: Simplify right side
    2,784,280.80x = 8,857,056,719,770.56
  5. Step 5: Solve for x
    x = 8,857,056,719,770.56/2,784,280.80
  6. Step 6: Final answer
    x = 3,181,093.20

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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.