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Finding the Third Proportional to 377,655.50 and 821,715.50

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Solution

The third proportional to 377,655.50 and 821,715.50 is: 1,787,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,655.50 : 821,715.50 = 821,715.50 : x
  2. Step 2: Convert to fraction form
    377,655.50/821,715.50 = 821,715.50/x
  3. Step 3: Cross multiply
    377,655.50x = 821,715.50 × 821,715.50
  4. Step 4: Simplify right side
    377,655.50x = 675,216,362,940.25
  5. Step 5: Solve for x
    x = 675,216,362,940.25/377,655.50
  6. Step 6: Final answer
    x = 1,787,916.14

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.