Home / 981,694.80-1,472,542.20-939,704.40

Finding the Fourth Proportional to 981,694.80, 1,472,542.20 and 939,704.40

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Solution

The fourth proportional to 981,694.80, 1,472,542.20 and 939,704.40 is: 1,409,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,694.80 : 1,472,542.20 = 939,704.40 : x
  2. Step 2: Convert to fraction form
    981,694.80/1,472,542.20 = 939,704.40/x
  3. Step 3: Cross multiply
    981,694.80x = 1,472,542.20 × 939,704.40
  4. Step 4: Simplify right side
    981,694.80x = 1,383,754,384,525.68
  5. Step 5: Solve for x
    x = 1,383,754,384,525.68/981,694.80
  6. Step 6: Final answer
    x = 1,409,556.60

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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.