Home / 726,142.70-1,089,370.76-220,744.38

Finding the Fourth Proportional to 726,142.70, 1,089,370.76 and 220,744.38

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Solution

The fourth proportional to 726,142.70, 1,089,370.76 and 220,744.38 is: 331,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,142.70 : 1,089,370.76 = 220,744.38 : x
  2. Step 2: Convert to fraction form
    726,142.70/1,089,370.76 = 220,744.38/x
  3. Step 3: Cross multiply
    726,142.70x = 1,089,370.76 × 220,744.38
  4. Step 4: Simplify right side
    726,142.70x = 240,472,475,987.75
  5. Step 5: Solve for x
    x = 240,472,475,987.75/726,142.70
  6. Step 6: Final answer
    x = 331,164.21

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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.