Home / 808,799.82-1,213,230.72-209,745.30

Finding the Fourth Proportional to 808,799.82, 1,213,230.72 and 209,745.30

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Solution

The fourth proportional to 808,799.82, 1,213,230.72 and 209,745.30 is: 314,625.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,799.82 : 1,213,230.72 = 209,745.30 : x
  2. Step 2: Convert to fraction form
    808,799.82/1,213,230.72 = 209,745.30/x
  3. Step 3: Cross multiply
    808,799.82x = 1,213,230.72 × 209,745.30
  4. Step 4: Simplify right side
    808,799.82x = 254,469,441,335.62
  5. Step 5: Solve for x
    x = 254,469,441,335.62/808,799.82
  6. Step 6: Final answer
    x = 314,625.99

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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.