Home / 726,285.40-1,089,078.18-252,960.28

Finding the Fourth Proportional to 726,285.40, 1,089,078.18 and 252,960.28

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Solution

The fourth proportional to 726,285.40, 1,089,078.18 and 252,960.28 is: 379,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,285.40 : 1,089,078.18 = 252,960.28 : x
  2. Step 2: Convert to fraction form
    726,285.40/1,089,078.18 = 252,960.28/x
  3. Step 3: Cross multiply
    726,285.40x = 1,089,078.18 × 252,960.28
  4. Step 4: Simplify right side
    726,285.40x = 275,493,521,354.69
  5. Step 5: Solve for x
    x = 275,493,521,354.69/726,285.40
  6. Step 6: Final answer
    x = 379,318.55

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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.