Home / 429,295.26-643,680.33-204,724.38

Finding the Fourth Proportional to 429,295.26, 643,680.33 and 204,724.38

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Solution

The fourth proportional to 429,295.26, 643,680.33 and 204,724.38 is: 306,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,295.26 : 643,680.33 = 204,724.38 : x
  2. Step 2: Convert to fraction form
    429,295.26/643,680.33 = 204,724.38/x
  3. Step 3: Cross multiply
    429,295.26x = 643,680.33 × 204,724.38
  4. Step 4: Simplify right side
    429,295.26x = 131,777,056,477.45
  5. Step 5: Solve for x
    x = 131,777,056,477.45/429,295.26
  6. Step 6: Final answer
    x = 306,961.36

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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.