Home / 726,816.43-1,090,138.78-194,378.73

Finding the Fourth Proportional to 726,816.43, 1,090,138.78 and 194,378.73

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Solution

The fourth proportional to 726,816.43, 1,090,138.78 and 194,378.73 is: 291,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,816.43 : 1,090,138.78 = 194,378.73 : x
  2. Step 2: Convert to fraction form
    726,816.43/1,090,138.78 = 194,378.73/x
  3. Step 3: Cross multiply
    726,816.43x = 1,090,138.78 × 194,378.73
  4. Step 4: Simplify right side
    726,816.43x = 211,899,791,580.15
  5. Step 5: Solve for x
    x = 211,899,791,580.15/726,816.43
  6. Step 6: Final answer
    x = 291,545.13

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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.