Home / 726,809.34-1,002,986.85-404,519.55

Finding the Fourth Proportional to 726,809.34, 1,002,986.85 and 404,519.55

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Solution

The fourth proportional to 726,809.34, 1,002,986.85 and 404,519.55 is: 558,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,809.34 : 1,002,986.85 = 404,519.55 : x
  2. Step 2: Convert to fraction form
    726,809.34/1,002,986.85 = 404,519.55/x
  3. Step 3: Cross multiply
    726,809.34x = 1,002,986.85 × 404,519.55
  4. Step 4: Simplify right side
    726,809.34x = 405,727,789,217.92
  5. Step 5: Solve for x
    x = 405,727,789,217.92/726,809.34
  6. Step 6: Final answer
    x = 558,231.39

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Double scale
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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.