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Finding the Third Proportional to 360,209 and 776,281

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Solution

The third proportional to 360,209 and 776,281 is: 1,672,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,209 : 776,281 = 776,281 : x
  2. Step 2: Convert to fraction form
    360,209/776,281 = 776,281/x
  3. Step 3: Cross multiply
    360,209x = 776,281 × 776,281
  4. Step 4: Simplify right side
    360,209x = 602,612,190,961
  5. Step 5: Solve for x
    x = 602,612,190,961/360,209
  6. Step 6: Final answer
    x = 1,672,951.51

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.