Home / 521,476.11-780,791.67-394,732.17

Finding the Fourth Proportional to 521,476.11, 780,791.67 and 394,732.17

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Solution

The fourth proportional to 521,476.11, 780,791.67 and 394,732.17 is: 591,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,476.11 : 780,791.67 = 394,732.17 : x
  2. Step 2: Convert to fraction form
    521,476.11/780,791.67 = 394,732.17/x
  3. Step 3: Cross multiply
    521,476.11x = 780,791.67 × 394,732.17
  4. Step 4: Simplify right side
    521,476.11x = 308,203,590,217.02
  5. Step 5: Solve for x
    x = 308,203,590,217.02/521,476.11
  6. Step 6: Final answer
    x = 591,021.50

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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.