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Finding the Fourth Proportional to 449,595, 620,458.92 and 258,608.16

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Solution

The fourth proportional to 449,595, 620,458.92 and 258,608.16 is: 356,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,595 : 620,458.92 = 258,608.16 : x
  2. Step 2: Convert to fraction form
    449,595/620,458.92 = 258,608.16/x
  3. Step 3: Cross multiply
    449,595x = 620,458.92 × 258,608.16
  4. Step 4: Simplify right side
    449,595x = 160,455,739,656.79
  5. Step 5: Solve for x
    x = 160,455,739,656.79/449,595
  6. Step 6: Final answer
    x = 356,889.51

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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.