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Finding the Third Proportional to 620,007.75 and 877,554

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Solution

The third proportional to 620,007.75 and 877,554 is: 1,242,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,007.75 : 877,554 = 877,554 : x
  2. Step 2: Convert to fraction form
    620,007.75/877,554 = 877,554/x
  3. Step 3: Cross multiply
    620,007.75x = 877,554 × 877,554
  4. Step 4: Simplify right side
    620,007.75x = 770,101,022,916
  5. Step 5: Solve for x
    x = 770,101,022,916/620,007.75
  6. Step 6: Final answer
    x = 1,242,082.90

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.