Home / 3,120,469.20-4,680,703.80-2,946,286.80

Finding the Fourth Proportional to 3,120,469.20, 4,680,703.80 and 2,946,286.80

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Solution

The fourth proportional to 3,120,469.20, 4,680,703.80 and 2,946,286.80 is: 4,419,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,469.20 : 4,680,703.80 = 2,946,286.80 : x
  2. Step 2: Convert to fraction form
    3,120,469.20/4,680,703.80 = 2,946,286.80/x
  3. Step 3: Cross multiply
    3,120,469.20x = 4,680,703.80 × 2,946,286.80
  4. Step 4: Simplify right side
    3,120,469.20x = 13,790,695,820,649.84
  5. Step 5: Solve for x
    x = 13,790,695,820,649.84/3,120,469.20
  6. Step 6: Final answer
    x = 4,419,430.20

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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.