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Finding the Fourth Proportional to 449,504.82, 620,328.78 and 268,321.86

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Solution

The fourth proportional to 449,504.82, 620,328.78 and 268,321.86 is: 370,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,504.82 : 620,328.78 = 268,321.86 : x
  2. Step 2: Convert to fraction form
    449,504.82/620,328.78 = 268,321.86/x
  3. Step 3: Cross multiply
    449,504.82x = 620,328.78 × 268,321.86
  4. Step 4: Simplify right side
    449,504.82x = 166,447,772,061.13
  5. Step 5: Solve for x
    x = 166,447,772,061.13/449,504.82
  6. Step 6: Final answer
    x = 370,291.41

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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.