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Finding the Third Proportional to 290,774 and 616,072

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Solution

The third proportional to 290,774 and 616,072 is: 1,305,291.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,774 : 616,072 = 616,072 : x
  2. Step 2: Convert to fraction form
    290,774/616,072 = 616,072/x
  3. Step 3: Cross multiply
    290,774x = 616,072 × 616,072
  4. Step 4: Simplify right side
    290,774x = 379,544,709,184
  5. Step 5: Solve for x
    x = 379,544,709,184/290,774
  6. Step 6: Final answer
    x = 1,305,291.08

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.