Home / 1,520,199.20-2,278,794.80-720,074.40

Finding the Fourth Proportional to 1,520,199.20, 2,278,794.80 and 720,074.40

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Solution

The fourth proportional to 1,520,199.20, 2,278,794.80 and 720,074.40 is: 1,079,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,199.20 : 2,278,794.80 = 720,074.40 : x
  2. Step 2: Convert to fraction form
    1,520,199.20/2,278,794.80 = 720,074.40/x
  3. Step 3: Cross multiply
    1,520,199.20x = 2,278,794.80 × 720,074.40
  4. Step 4: Simplify right side
    1,520,199.20x = 1,640,901,798,333.12
  5. Step 5: Solve for x
    x = 1,640,901,798,333.12/1,520,199.20
  6. Step 6: Final answer
    x = 1,079,399.20

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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.