Home / 663,311.39-994,869.89-326,261.57

Finding the Fourth Proportional to 663,311.39, 994,869.89 and 326,261.57

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Solution

The fourth proportional to 663,311.39, 994,869.89 and 326,261.57 is: 489,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,311.39 : 994,869.89 = 326,261.57 : x
  2. Step 2: Convert to fraction form
    663,311.39/994,869.89 = 326,261.57/x
  3. Step 3: Cross multiply
    663,311.39x = 994,869.89 × 326,261.57
  4. Step 4: Simplify right side
    663,311.39x = 324,587,813,112.99
  5. Step 5: Solve for x
    x = 324,587,813,112.99/663,311.39
  6. Step 6: Final answer
    x = 489,344.55

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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.