Home / 512,429.97-769,111.44-272,745.12

Finding the Fourth Proportional to 512,429.97, 769,111.44 and 272,745.12

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Solution

The fourth proportional to 512,429.97, 769,111.44 and 272,745.12 is: 409,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,429.97 : 769,111.44 = 272,745.12 : x
  2. Step 2: Convert to fraction form
    512,429.97/769,111.44 = 272,745.12/x
  3. Step 3: Cross multiply
    512,429.97x = 769,111.44 × 272,745.12
  4. Step 4: Simplify right side
    512,429.97x = 209,771,391,996.17
  5. Step 5: Solve for x
    x = 209,771,391,996.17/512,429.97
  6. Step 6: Final answer
    x = 409,365.97

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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.