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Finding the Fourth Proportional to 663,310.64, 994,868.76 and 326,260.82

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Solution

The fourth proportional to 663,310.64, 994,868.76 and 326,260.82 is: 489,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,310.64 : 994,868.76 = 326,260.82 : x
  2. Step 2: Convert to fraction form
    663,310.64/994,868.76 = 326,260.82/x
  3. Step 3: Cross multiply
    663,310.64x = 994,868.76 × 326,260.82
  4. Step 4: Simplify right side
    663,310.64x = 324,586,701,140.63
  5. Step 5: Solve for x
    x = 324,586,701,140.63/663,310.64
  6. Step 6: Final answer
    x = 489,343.42

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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.