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Finding the Fourth Proportional to 449,499.02, 620,327.52 and 258,512.58

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Solution

The fourth proportional to 449,499.02, 620,327.52 and 258,512.58 is: 356,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,499.02 : 620,327.52 = 258,512.58 : x
  2. Step 2: Convert to fraction form
    449,499.02/620,327.52 = 258,512.58/x
  3. Step 3: Cross multiply
    449,499.02x = 620,327.52 × 258,512.58
  4. Step 4: Simplify right side
    449,499.02x = 160,362,467,640.20
  5. Step 5: Solve for x
    x = 160,362,467,640.20/449,499.02
  6. Step 6: Final answer
    x = 356,758.22

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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.