Home / 726,350.40-1,089,136.80-305,150.40

Finding the Fourth Proportional to 726,350.40, 1,089,136.80 and 305,150.40

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Solution

The fourth proportional to 726,350.40, 1,089,136.80 and 305,150.40 is: 457,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,350.40 : 1,089,136.80 = 305,150.40 : x
  2. Step 2: Convert to fraction form
    726,350.40/1,089,136.80 = 305,150.40/x
  3. Step 3: Cross multiply
    726,350.40x = 1,089,136.80 × 305,150.40
  4. Step 4: Simplify right side
    726,350.40x = 332,350,530,174.72
  5. Step 5: Solve for x
    x = 332,350,530,174.72/726,350.40
  6. Step 6: Final answer
    x = 457,562.26

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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.