Home / 981,447.50-1,472,241.24-261,785.13

Finding the Fourth Proportional to 981,447.50, 1,472,241.24 and 261,785.13

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Solution

The fourth proportional to 981,447.50, 1,472,241.24 and 261,785.13 is: 392,696.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,447.50 : 1,472,241.24 = 261,785.13 : x
  2. Step 2: Convert to fraction form
    981,447.50/1,472,241.24 = 261,785.13/x
  3. Step 3: Cross multiply
    981,447.50x = 1,472,241.24 × 261,785.13
  4. Step 4: Simplify right side
    981,447.50x = 385,410,864,404.76
  5. Step 5: Solve for x
    x = 385,410,864,404.76/981,447.50
  6. Step 6: Final answer
    x = 392,696.37

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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.