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Finding the Third Proportional to 553,981.78 and 1,190,720.88

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Solution

The third proportional to 553,981.78 and 1,190,720.88 is: 2,559,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,981.78 : 1,190,720.88 = 1,190,720.88 : x
  2. Step 2: Convert to fraction form
    553,981.78/1,190,720.88 = 1,190,720.88/x
  3. Step 3: Cross multiply
    553,981.78x = 1,190,720.88 × 1,190,720.88
  4. Step 4: Simplify right side
    553,981.78x = 1,417,816,220,765.78
  5. Step 5: Solve for x
    x = 1,417,816,220,765.78/553,981.78
  6. Step 6: Final answer
    x = 2,559,319.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.