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Finding the Third Proportional to 537,121.50 and 776,772.75

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Solution

The third proportional to 537,121.50 and 776,772.75 is: 1,123,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,121.50 : 776,772.75 = 776,772.75 : x
  2. Step 2: Convert to fraction form
    537,121.50/776,772.75 = 776,772.75/x
  3. Step 3: Cross multiply
    537,121.50x = 776,772.75 × 776,772.75
  4. Step 4: Simplify right side
    537,121.50x = 603,375,905,142.56
  5. Step 5: Solve for x
    x = 603,375,905,142.56/537,121.50
  6. Step 6: Final answer
    x = 1,123,350.87

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.