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Finding the Third Proportional to 1,821,289.88 and 2,672,885.81

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Solution

The third proportional to 1,821,289.88 and 2,672,885.81 is: 3,922,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,289.88 : 2,672,885.81 = 2,672,885.81 : x
  2. Step 2: Convert to fraction form
    1,821,289.88/2,672,885.81 = 2,672,885.81/x
  3. Step 3: Cross multiply
    1,821,289.88x = 2,672,885.81 × 2,672,885.81
  4. Step 4: Simplify right side
    1,821,289.88x = 7,144,318,566,663.79
  5. Step 5: Solve for x
    x = 7,144,318,566,663.79/1,821,289.88
  6. Step 6: Final answer
    x = 3,922,669.68

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.