Home / 1,321,328.22-1,981,991.61-374,706.78

Finding the Fourth Proportional to 1,321,328.22, 1,981,991.61 and 374,706.78

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Solution

The fourth proportional to 1,321,328.22, 1,981,991.61 and 374,706.78 is: 562,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,328.22 : 1,981,991.61 = 374,706.78 : x
  2. Step 2: Convert to fraction form
    1,321,328.22/1,981,991.61 = 374,706.78/x
  3. Step 3: Cross multiply
    1,321,328.22x = 1,981,991.61 × 374,706.78
  4. Step 4: Simplify right side
    1,321,328.22x = 742,665,694,170.12
  5. Step 5: Solve for x
    x = 742,665,694,170.12/1,321,328.22
  6. Step 6: Final answer
    x = 562,059.97

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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.