Home / 802,443.40-1,204,131.66-329,468.20

Finding the Fourth Proportional to 802,443.40, 1,204,131.66 and 329,468.20

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Solution

The fourth proportional to 802,443.40, 1,204,131.66 and 329,468.20 is: 494,393.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,443.40 : 1,204,131.66 = 329,468.20 : x
  2. Step 2: Convert to fraction form
    802,443.40/1,204,131.66 = 329,468.20/x
  3. Step 3: Cross multiply
    802,443.40x = 1,204,131.66 × 329,468.20
  4. Step 4: Simplify right side
    802,443.40x = 396,723,090,583.21
  5. Step 5: Solve for x
    x = 396,723,090,583.21/802,443.40
  6. Step 6: Final answer
    x = 494,393.86

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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.