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Finding the Fourth Proportional to 591,449.20, 886,540.26 and 422,457

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Solution

The fourth proportional to 591,449.20, 886,540.26 and 422,457 is: 633,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,449.20 : 886,540.26 = 422,457 : x
  2. Step 2: Convert to fraction form
    591,449.20/886,540.26 = 422,457/x
  3. Step 3: Cross multiply
    591,449.20x = 886,540.26 × 422,457
  4. Step 4: Simplify right side
    591,449.20x = 374,525,138,618.82
  5. Step 5: Solve for x
    x = 374,525,138,618.82/591,449.20
  6. Step 6: Final answer
    x = 633,232.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.