Home / 609,273.45-840,979.58-394,428.02

Finding the Fourth Proportional to 609,273.45, 840,979.58 and 394,428.02

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Solution

The fourth proportional to 609,273.45, 840,979.58 and 394,428.02 is: 544,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,273.45 : 840,979.58 = 394,428.02 : x
  2. Step 2: Convert to fraction form
    609,273.45/840,979.58 = 394,428.02/x
  3. Step 3: Cross multiply
    609,273.45x = 840,979.58 × 394,428.02
  4. Step 4: Simplify right side
    609,273.45x = 331,705,904,422.79
  5. Step 5: Solve for x
    x = 331,705,904,422.79/609,273.45
  6. Step 6: Final answer
    x = 544,428.62

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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.