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Finding the Fourth Proportional to 490,627.78, 677,074.34 and 269,873.80

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Solution

The fourth proportional to 490,627.78, 677,074.34 and 269,873.80 is: 372,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,627.78 : 677,074.34 = 269,873.80 : x
  2. Step 2: Convert to fraction form
    490,627.78/677,074.34 = 269,873.80/x
  3. Step 3: Cross multiply
    490,627.78x = 677,074.34 × 269,873.80
  4. Step 4: Simplify right side
    490,627.78x = 182,724,625,018.29
  5. Step 5: Solve for x
    x = 182,724,625,018.29/490,627.78
  6. Step 6: Final answer
    x = 372,430.25

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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.