Home / 981,612.51-1,472,451.57-271,581.09

Finding the Fourth Proportional to 981,612.51, 1,472,451.57 and 271,581.09

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Solution

The fourth proportional to 981,612.51, 1,472,451.57 and 271,581.09 is: 407,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,612.51 : 1,472,451.57 = 271,581.09 : x
  2. Step 2: Convert to fraction form
    981,612.51/1,472,451.57 = 271,581.09/x
  3. Step 3: Cross multiply
    981,612.51x = 1,472,451.57 × 271,581.09
  4. Step 4: Simplify right side
    981,612.51x = 399,890,002,352.81
  5. Step 5: Solve for x
    x = 399,890,002,352.81/981,612.51
  6. Step 6: Final answer
    x = 407,380.71

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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.