Home / 1,321,163.20-1,981,744.80-374,542.16

Finding the Fourth Proportional to 1,321,163.20, 1,981,744.80 and 374,542.16

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Solution

The fourth proportional to 1,321,163.20, 1,981,744.80 and 374,542.16 is: 561,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,163.20 : 1,981,744.80 = 374,542.16 : x
  2. Step 2: Convert to fraction form
    1,321,163.20/1,981,744.80 = 374,542.16/x
  3. Step 3: Cross multiply
    1,321,163.20x = 1,981,744.80 × 374,542.16
  4. Step 4: Simplify right side
    1,321,163.20x = 742,246,977,960.77
  5. Step 5: Solve for x
    x = 742,246,977,960.77/1,321,163.20
  6. Step 6: Final answer
    x = 561,813.24

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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.