Home / 981,472.20-1,472,208.28-271,481.76

Finding the Fourth Proportional to 981,472.20, 1,472,208.28 and 271,481.76

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Solution

The fourth proportional to 981,472.20, 1,472,208.28 and 271,481.76 is: 407,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,472.20 : 1,472,208.28 = 271,481.76 : x
  2. Step 2: Convert to fraction form
    981,472.20/1,472,208.28 = 271,481.76/x
  3. Step 3: Cross multiply
    981,472.20x = 1,472,208.28 × 271,481.76
  4. Step 4: Simplify right side
    981,472.20x = 399,677,694,940.97
  5. Step 5: Solve for x
    x = 399,677,694,940.97/981,472.20
  6. Step 6: Final answer
    x = 407,222.63

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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.