Home / 694,317.92-1,040,131.80-393,889.70

Finding the Fourth Proportional to 694,317.92, 1,040,131.80 and 393,889.70

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Solution

The fourth proportional to 694,317.92, 1,040,131.80 and 393,889.70 is: 590,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,317.92 : 1,040,131.80 = 393,889.70 : x
  2. Step 2: Convert to fraction form
    694,317.92/1,040,131.80 = 393,889.70/x
  3. Step 3: Cross multiply
    694,317.92x = 1,040,131.80 × 393,889.70
  4. Step 4: Simplify right side
    694,317.92x = 409,697,202,662.46
  5. Step 5: Solve for x
    x = 409,697,202,662.46/694,317.92
  6. Step 6: Final answer
    x = 590,071.48

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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.