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Finding the Fourth Proportional to 449,791.60, 620,735.52 and 258,833.56

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Solution

The fourth proportional to 449,791.60, 620,735.52 and 258,833.56 is: 357,203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,791.60 : 620,735.52 = 258,833.56 : x
  2. Step 2: Convert to fraction form
    449,791.60/620,735.52 = 258,833.56/x
  3. Step 3: Cross multiply
    449,791.60x = 620,735.52 × 258,833.56
  4. Step 4: Simplify right side
    449,791.60x = 160,667,184,460.05
  5. Step 5: Solve for x
    x = 160,667,184,460.05/449,791.60
  6. Step 6: Final answer
    x = 357,203.61

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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.