Home / 494,137.13-681,982.38-312,865.92

Finding the Fourth Proportional to 494,137.13, 681,982.38 and 312,865.92

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Solution

The fourth proportional to 494,137.13, 681,982.38 and 312,865.92 is: 431,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,137.13 : 681,982.38 = 312,865.92 : x
  2. Step 2: Convert to fraction form
    494,137.13/681,982.38 = 312,865.92/x
  3. Step 3: Cross multiply
    494,137.13x = 681,982.38 × 312,865.92
  4. Step 4: Simplify right side
    494,137.13x = 213,369,044,742.49
  5. Step 5: Solve for x
    x = 213,369,044,742.49/494,137.13
  6. Step 6: Final answer
    x = 431,801.28

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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.