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Finding the Third Proportional to 557,174 and 1,221,153

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Solution

The third proportional to 557,174 and 1,221,153 is: 2,676,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,174 : 1,221,153 = 1,221,153 : x
  2. Step 2: Convert to fraction form
    557,174/1,221,153 = 1,221,153/x
  3. Step 3: Cross multiply
    557,174x = 1,221,153 × 1,221,153
  4. Step 4: Simplify right side
    557,174x = 1,491,214,649,409
  5. Step 5: Solve for x
    x = 1,491,214,649,409/557,174
  6. Step 6: Final answer
    x = 2,676,389.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.