Home / 726,274.62-1,002,219.22-399,581.47

Finding the Fourth Proportional to 726,274.62, 1,002,219.22 and 399,581.47

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Solution

The fourth proportional to 726,274.62, 1,002,219.22 and 399,581.47 is: 551,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,274.62 : 1,002,219.22 = 399,581.47 : x
  2. Step 2: Convert to fraction form
    726,274.62/1,002,219.22 = 399,581.47/x
  3. Step 3: Cross multiply
    726,274.62x = 1,002,219.22 × 399,581.47
  4. Step 4: Simplify right side
    726,274.62x = 400,468,230,942.10
  5. Step 5: Solve for x
    x = 400,468,230,942.10/726,274.62
  6. Step 6: Final answer
    x = 551,400.56

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1.5x scale

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.