Home / 720,536.96-1,080,640.92-271,305.20

Finding the Fourth Proportional to 720,536.96, 1,080,640.92 and 271,305.20

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Solution

The fourth proportional to 720,536.96, 1,080,640.92 and 271,305.20 is: 406,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,536.96 : 1,080,640.92 = 271,305.20 : x
  2. Step 2: Convert to fraction form
    720,536.96/1,080,640.92 = 271,305.20/x
  3. Step 3: Cross multiply
    720,536.96x = 1,080,640.92 × 271,305.20
  4. Step 4: Simplify right side
    720,536.96x = 293,183,500,928.78
  5. Step 5: Solve for x
    x = 293,183,500,928.78/720,536.96
  6. Step 6: Final answer
    x = 406,895.85

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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.