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Finding the Third Proportional to 476,720 and 699,495

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Solution

The third proportional to 476,720 and 699,495 is: 1,026,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,720 : 699,495 = 699,495 : x
  2. Step 2: Convert to fraction form
    476,720/699,495 = 699,495/x
  3. Step 3: Cross multiply
    476,720x = 699,495 × 699,495
  4. Step 4: Simplify right side
    476,720x = 489,293,255,025
  5. Step 5: Solve for x
    x = 489,293,255,025/476,720
  6. Step 6: Final answer
    x = 1,026,374.51

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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.