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Finding the Fourth Proportional to 663,200.87, 994,704.40 and 326,151.06

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Solution

The fourth proportional to 663,200.87, 994,704.40 and 326,151.06 is: 489,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,200.87 : 994,704.40 = 326,151.06 : x
  2. Step 2: Convert to fraction form
    663,200.87/994,704.40 = 326,151.06/x
  3. Step 3: Cross multiply
    663,200.87x = 994,704.40 × 326,151.06
  4. Step 4: Simplify right side
    663,200.87x = 324,423,891,124.21
  5. Step 5: Solve for x
    x = 324,423,891,124.21/663,200.87
  6. Step 6: Final answer
    x = 489,178.93

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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.