Home / 726,009.40-1,089,402.90-305,327.80

Finding the Fourth Proportional to 726,009.40, 1,089,402.90 and 305,327.80

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Solution

The fourth proportional to 726,009.40, 1,089,402.90 and 305,327.80 is: 458,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,009.40 : 1,089,402.90 = 305,327.80 : x
  2. Step 2: Convert to fraction form
    726,009.40/1,089,402.90 = 305,327.80/x
  3. Step 3: Cross multiply
    726,009.40x = 1,089,402.90 × 305,327.80
  4. Step 4: Simplify right side
    726,009.40x = 332,624,990,770.62
  5. Step 5: Solve for x
    x = 332,624,990,770.62/726,009.40
  6. Step 6: Final answer
    x = 458,155.21

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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.