Home / 429,208.44-643,826.16-204,593.28

Finding the Fourth Proportional to 429,208.44, 643,826.16 and 204,593.28

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Solution

The fourth proportional to 429,208.44, 643,826.16 and 204,593.28 is: 306,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,208.44 : 643,826.16 = 204,593.28 : x
  2. Step 2: Convert to fraction form
    429,208.44/643,826.16 = 204,593.28/x
  3. Step 3: Cross multiply
    429,208.44x = 643,826.16 × 204,593.28
  4. Step 4: Simplify right side
    429,208.44x = 131,722,505,824.21
  5. Step 5: Solve for x
    x = 131,722,505,824.21/429,208.44
  6. Step 6: Final answer
    x = 306,896.36

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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.