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Finding the Fourth Proportional to 449,791.35, 620,735.18 and 258,833.31

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Solution

The fourth proportional to 449,791.35, 620,735.18 and 258,833.31 is: 357,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,791.35 : 620,735.18 = 258,833.31 : x
  2. Step 2: Convert to fraction form
    449,791.35/620,735.18 = 258,833.31/x
  3. Step 3: Cross multiply
    449,791.35x = 620,735.18 × 258,833.31
  4. Step 4: Simplify right side
    449,791.35x = 160,666,939,978.68
  5. Step 5: Solve for x
    x = 160,666,939,978.68/449,791.35
  6. Step 6: Final answer
    x = 357,203.27

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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.