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Finding the Fourth Proportional to 449,496.58, 620,317.42 and 268,313.60

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Solution

The fourth proportional to 449,496.58, 620,317.42 and 268,313.60 is: 370,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,496.58 : 620,317.42 = 268,313.60 : x
  2. Step 2: Convert to fraction form
    449,496.58/620,317.42 = 268,313.60/x
  3. Step 3: Cross multiply
    449,496.58x = 620,317.42 × 268,313.60
  4. Step 4: Simplify right side
    449,496.58x = 166,439,600,982.92
  5. Step 5: Solve for x
    x = 166,439,600,982.92/449,496.58
  6. Step 6: Final answer
    x = 370,280.02

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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.