Home / 426,724.94-640,179.68-227,016.31

Finding the Fourth Proportional to 426,724.94, 640,179.68 and 227,016.31

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Solution

The fourth proportional to 426,724.94, 640,179.68 and 227,016.31 is: 340,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,724.94 : 640,179.68 = 227,016.31 : x
  2. Step 2: Convert to fraction form
    426,724.94/640,179.68 = 227,016.31/x
  3. Step 3: Cross multiply
    426,724.94x = 640,179.68 × 227,016.31
  4. Step 4: Simplify right side
    426,724.94x = 145,331,225,205.91
  5. Step 5: Solve for x
    x = 145,331,225,205.91/426,724.94
  6. Step 6: Final answer
    x = 340,573.54

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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.