Home / 494,097.31-681,580.43-287,343.07

Finding the Fourth Proportional to 494,097.31, 681,580.43 and 287,343.07

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Solution

The fourth proportional to 494,097.31, 681,580.43 and 287,343.07 is: 396,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,097.31 : 681,580.43 = 287,343.07 : x
  2. Step 2: Convert to fraction form
    494,097.31/681,580.43 = 287,343.07/x
  3. Step 3: Cross multiply
    494,097.31x = 681,580.43 × 287,343.07
  4. Step 4: Simplify right side
    494,097.31x = 195,847,410,067.45
  5. Step 5: Solve for x
    x = 195,847,410,067.45/494,097.31
  6. Step 6: Final answer
    x = 396,374.17

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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.