Home / 538,469.92-743,091.44-309,008.96

Finding the Fourth Proportional to 538,469.92, 743,091.44 and 309,008.96

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Solution

The fourth proportional to 538,469.92, 743,091.44 and 309,008.96 is: 426,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,469.92 : 743,091.44 = 309,008.96 : x
  2. Step 2: Convert to fraction form
    538,469.92/743,091.44 = 309,008.96/x
  3. Step 3: Cross multiply
    538,469.92x = 743,091.44 × 309,008.96
  4. Step 4: Simplify right side
    538,469.92x = 229,621,913,059.30
  5. Step 5: Solve for x
    x = 229,621,913,059.30/538,469.92
  6. Step 6: Final answer
    x = 426,434.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.