Home / 726,788.40-1,090,231.20-247,009.20

Finding the Fourth Proportional to 726,788.40, 1,090,231.20 and 247,009.20

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Solution

The fourth proportional to 726,788.40, 1,090,231.20 and 247,009.20 is: 370,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,788.40 : 1,090,231.20 = 247,009.20 : x
  2. Step 2: Convert to fraction form
    726,788.40/1,090,231.20 = 247,009.20/x
  3. Step 3: Cross multiply
    726,788.40x = 1,090,231.20 × 247,009.20
  4. Step 4: Simplify right side
    726,788.40x = 269,297,136,527.04
  5. Step 5: Solve for x
    x = 269,297,136,527.04/726,788.40
  6. Step 6: Final answer
    x = 370,530.32

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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.