Home / 513,170.28-769,896.36-213,791.04

Finding the Fourth Proportional to 513,170.28, 769,896.36 and 213,791.04

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Solution

The fourth proportional to 513,170.28, 769,896.36 and 213,791.04 is: 320,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,170.28 : 769,896.36 = 213,791.04 : x
  2. Step 2: Convert to fraction form
    513,170.28/769,896.36 = 213,791.04/x
  3. Step 3: Cross multiply
    513,170.28x = 769,896.36 × 213,791.04
  4. Step 4: Simplify right side
    513,170.28x = 164,596,943,496.61
  5. Step 5: Solve for x
    x = 164,596,943,496.61/513,170.28
  6. Step 6: Final answer
    x = 320,745.28

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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.