Home / 726,609.42-1,089,920.25-253,293.90

Finding the Fourth Proportional to 726,609.42, 1,089,920.25 and 253,293.90

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Solution

The fourth proportional to 726,609.42, 1,089,920.25 and 253,293.90 is: 379,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,609.42 : 1,089,920.25 = 253,293.90 : x
  2. Step 2: Convert to fraction form
    726,609.42/1,089,920.25 = 253,293.90/x
  3. Step 3: Cross multiply
    726,609.42x = 1,089,920.25 × 253,293.90
  4. Step 4: Simplify right side
    726,609.42x = 276,070,150,811.48
  5. Step 5: Solve for x
    x = 276,070,150,811.48/726,609.42
  6. Step 6: Final answer
    x = 379,942.98

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1.5x scale

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.