Home / 3,540,321.20-5,310,481.80-981,531.20

Finding the Fourth Proportional to 3,540,321.20, 5,310,481.80 and 981,531.20

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Solution

The fourth proportional to 3,540,321.20, 5,310,481.80 and 981,531.20 is: 1,472,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540,321.20 : 5,310,481.80 = 981,531.20 : x
  2. Step 2: Convert to fraction form
    3,540,321.20/5,310,481.80 = 981,531.20/x
  3. Step 3: Cross multiply
    3,540,321.20x = 5,310,481.80 × 981,531.20
  4. Step 4: Simplify right side
    3,540,321.20x = 5,212,403,573,732.16
  5. Step 5: Solve for x
    x = 5,212,403,573,732.16/3,540,321.20
  6. Step 6: Final answer
    x = 1,472,296.80

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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.