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Finding the Third Proportional to 369,992 and 553,480

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Solution

The third proportional to 369,992 and 553,480 is: 827,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,992 : 553,480 = 553,480 : x
  2. Step 2: Convert to fraction form
    369,992/553,480 = 553,480/x
  3. Step 3: Cross multiply
    369,992x = 553,480 × 553,480
  4. Step 4: Simplify right side
    369,992x = 306,340,110,400
  5. Step 5: Solve for x
    x = 306,340,110,400/369,992
  6. Step 6: Final answer
    x = 827,964.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.