Home / 3,120,407.20-4,680,610.80-2,759,600.80

Finding the Fourth Proportional to 3,120,407.20, 4,680,610.80 and 2,759,600.80

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Solution

The fourth proportional to 3,120,407.20, 4,680,610.80 and 2,759,600.80 is: 4,139,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,407.20 : 4,680,610.80 = 2,759,600.80 : x
  2. Step 2: Convert to fraction form
    3,120,407.20/4,680,610.80 = 2,759,600.80/x
  3. Step 3: Cross multiply
    3,120,407.20x = 4,680,610.80 × 2,759,600.80
  4. Step 4: Simplify right side
    3,120,407.20x = 12,916,617,308,168.64
  5. Step 5: Solve for x
    x = 12,916,617,308,168.64/3,120,407.20
  6. Step 6: Final answer
    x = 4,139,401.20

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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.