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Finding the Fourth Proportional to 490,564.56, 677,035.02 and 272,794.80

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Solution

The fourth proportional to 490,564.56, 677,035.02 and 272,794.80 is: 376,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,564.56 : 677,035.02 = 272,794.80 : x
  2. Step 2: Convert to fraction form
    490,564.56/677,035.02 = 272,794.80/x
  3. Step 3: Cross multiply
    490,564.56x = 677,035.02 × 272,794.80
  4. Step 4: Simplify right side
    490,564.56x = 184,691,632,873.90
  5. Step 5: Solve for x
    x = 184,691,632,873.90/490,564.56
  6. Step 6: Final answer
    x = 376,487.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.