Home / 726,287.40-1,089,042.30-305,087.40

Finding the Fourth Proportional to 726,287.40, 1,089,042.30 and 305,087.40

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Solution

The fourth proportional to 726,287.40, 1,089,042.30 and 305,087.40 is: 457,467.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,287.40 : 1,089,042.30 = 305,087.40 : x
  2. Step 2: Convert to fraction form
    726,287.40/1,089,042.30 = 305,087.40/x
  3. Step 3: Cross multiply
    726,287.40x = 1,089,042.30 × 305,087.40
  4. Step 4: Simplify right side
    726,287.40x = 332,253,083,797.02
  5. Step 5: Solve for x
    x = 332,253,083,797.02/726,287.40
  6. Step 6: Final answer
    x = 457,467.78

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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.