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Finding the Fourth Proportional to 494,689.52, 681,914.04 and 303,348.08

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Solution

The fourth proportional to 494,689.52, 681,914.04 and 303,348.08 is: 418,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,689.52 : 681,914.04 = 303,348.08 : x
  2. Step 2: Convert to fraction form
    494,689.52/681,914.04 = 303,348.08/x
  3. Step 3: Cross multiply
    494,689.52x = 681,914.04 × 303,348.08
  4. Step 4: Simplify right side
    494,689.52x = 206,857,314,759.04
  5. Step 5: Solve for x
    x = 206,857,314,759.04/494,689.52
  6. Step 6: Final answer
    x = 418,155.85

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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.