Home / 981,370.20-1,472,055.30-768,793.80

Finding the Fourth Proportional to 981,370.20, 1,472,055.30 and 768,793.80

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Solution

The fourth proportional to 981,370.20, 1,472,055.30 and 768,793.80 is: 1,153,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,370.20 : 1,472,055.30 = 768,793.80 : x
  2. Step 2: Convert to fraction form
    981,370.20/1,472,055.30 = 768,793.80/x
  3. Step 3: Cross multiply
    981,370.20x = 1,472,055.30 × 768,793.80
  4. Step 4: Simplify right side
    981,370.20x = 1,131,706,987,897.14
  5. Step 5: Solve for x
    x = 1,131,706,987,897.14/981,370.20
  6. Step 6: Final answer
    x = 1,153,190.70

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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.