Home / 426,912.14-640,478.82-227,068.04

Finding the Fourth Proportional to 426,912.14, 640,478.82 and 227,068.04

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Solution

The fourth proportional to 426,912.14, 640,478.82 and 227,068.04 is: 340,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,912.14 : 640,478.82 = 227,068.04 : x
  2. Step 2: Convert to fraction form
    426,912.14/640,478.82 = 227,068.04/x
  3. Step 3: Cross multiply
    426,912.14x = 640,478.82 × 227,068.04
  4. Step 4: Simplify right side
    426,912.14x = 145,432,270,318.91
  5. Step 5: Solve for x
    x = 145,432,270,318.91/426,912.14
  6. Step 6: Final answer
    x = 340,660.89

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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.