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Finding the Fourth Proportional to 663,863.65, 995,793.95 and 284,538.43

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Solution

The fourth proportional to 663,863.65, 995,793.95 and 284,538.43 is: 426,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,863.65 : 995,793.95 = 284,538.43 : x
  2. Step 2: Convert to fraction form
    663,863.65/995,793.95 = 284,538.43/x
  3. Step 3: Cross multiply
    663,863.65x = 995,793.95 × 284,538.43
  4. Step 4: Simplify right side
    663,863.65x = 283,341,647,136.50
  5. Step 5: Solve for x
    x = 283,341,647,136.50/663,863.65
  6. Step 6: Final answer
    x = 426,806.99

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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.