Home / 427,789.08-642,846.78-228,250.44

Finding the Fourth Proportional to 427,789.08, 642,846.78 and 228,250.44

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Solution

The fourth proportional to 427,789.08, 642,846.78 and 228,250.44 is: 342,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,789.08 : 642,846.78 = 228,250.44 : x
  2. Step 2: Convert to fraction form
    427,789.08/642,846.78 = 228,250.44/x
  3. Step 3: Cross multiply
    427,789.08x = 642,846.78 × 228,250.44
  4. Step 4: Simplify right side
    427,789.08x = 146,730,060,387.58
  5. Step 5: Solve for x
    x = 146,730,060,387.58/427,789.08
  6. Step 6: Final answer
    x = 342,996.27

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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.