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Finding the Fourth Proportional to 454,958.78, 627,849.51 and 251,018.60

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Solution

The fourth proportional to 454,958.78, 627,849.51 and 251,018.60 is: 346,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,958.78 : 627,849.51 = 251,018.60 : x
  2. Step 2: Convert to fraction form
    454,958.78/627,849.51 = 251,018.60/x
  3. Step 3: Cross multiply
    454,958.78x = 627,849.51 × 251,018.60
  4. Step 4: Simplify right side
    454,958.78x = 157,601,905,010.89
  5. Step 5: Solve for x
    x = 157,601,905,010.89/454,958.78
  6. Step 6: Final answer
    x = 346,409.20

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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.