Home / 726,738.74-1,002,889.69-404,448.75

Finding the Fourth Proportional to 726,738.74, 1,002,889.69 and 404,448.75

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Solution

The fourth proportional to 726,738.74, 1,002,889.69 and 404,448.75 is: 558,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,738.74 : 1,002,889.69 = 404,448.75 : x
  2. Step 2: Convert to fraction form
    726,738.74/1,002,889.69 = 404,448.75/x
  3. Step 3: Cross multiply
    726,738.74x = 1,002,889.69 × 404,448.75
  4. Step 4: Simplify right side
    726,738.74x = 405,617,481,508.39
  5. Step 5: Solve for x
    x = 405,617,481,508.39/726,738.74
  6. Step 6: Final answer
    x = 558,133.84

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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.