Home / 1,321,324.80-1,981,560.70-374,441.28

Finding the Fourth Proportional to 1,321,324.80, 1,981,560.70 and 374,441.28

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Solution

The fourth proportional to 1,321,324.80, 1,981,560.70 and 374,441.28 is: 561,541.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,324.80 : 1,981,560.70 = 374,441.28 : x
  2. Step 2: Convert to fraction form
    1,321,324.80/1,981,560.70 = 374,441.28/x
  3. Step 3: Cross multiply
    1,321,324.80x = 1,981,560.70 × 374,441.28
  4. Step 4: Simplify right side
    1,321,324.80x = 741,978,124,905.70
  5. Step 5: Solve for x
    x = 741,978,124,905.70/1,321,324.80
  6. Step 6: Final answer
    x = 561,541.06

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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.