Home / 429,743.52-644,433.03-204,843.78

Finding the Fourth Proportional to 429,743.52, 644,433.03 and 204,843.78

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Solution

The fourth proportional to 429,743.52, 644,433.03 and 204,843.78 is: 307,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,743.52 : 644,433.03 = 204,843.78 : x
  2. Step 2: Convert to fraction form
    429,743.52/644,433.03 = 204,843.78/x
  3. Step 3: Cross multiply
    429,743.52x = 644,433.03 × 204,843.78
  4. Step 4: Simplify right side
    429,743.52x = 132,008,097,822.05
  5. Step 5: Solve for x
    x = 132,008,097,822.05/429,743.52
  6. Step 6: Final answer
    x = 307,178.80

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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.