Home / 726,110.87-1,002,057.68-399,438.27

Finding the Fourth Proportional to 726,110.87, 1,002,057.68 and 399,438.27

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Solution

The fourth proportional to 726,110.87, 1,002,057.68 and 399,438.27 is: 551,238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,110.87 : 1,002,057.68 = 399,438.27 : x
  2. Step 2: Convert to fraction form
    726,110.87/1,002,057.68 = 399,438.27/x
  3. Step 3: Cross multiply
    726,110.87x = 1,002,057.68 × 399,438.27
  4. Step 4: Simplify right side
    726,110.87x = 400,260,187,138.01
  5. Step 5: Solve for x
    x = 400,260,187,138.01/726,110.87
  6. Step 6: Final answer
    x = 551,238.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.