Home / 726,991.40-1,090,535.70-247,212.20

Finding the Fourth Proportional to 726,991.40, 1,090,535.70 and 247,212.20

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Solution

The fourth proportional to 726,991.40, 1,090,535.70 and 247,212.20 is: 370,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,991.40 : 1,090,535.70 = 247,212.20 : x
  2. Step 2: Convert to fraction form
    726,991.40/1,090,535.70 = 247,212.20/x
  3. Step 3: Cross multiply
    726,991.40x = 1,090,535.70 × 247,212.20
  4. Step 4: Simplify right side
    726,991.40x = 269,593,729,575.54
  5. Step 5: Solve for x
    x = 269,593,729,575.54/726,991.40
  6. Step 6: Final answer
    x = 370,834.83

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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.