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Finding the Fourth Proportional to 399,365.12, 599,047.68 and 274,327.04

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Solution

The fourth proportional to 399,365.12, 599,047.68 and 274,327.04 is: 411,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,365.12 : 599,047.68 = 274,327.04 : x
  2. Step 2: Convert to fraction form
    399,365.12/599,047.68 = 274,327.04/x
  3. Step 3: Cross multiply
    399,365.12x = 599,047.68 × 274,327.04
  4. Step 4: Simplify right side
    399,365.12x = 164,334,976,873.27
  5. Step 5: Solve for x
    x = 164,334,976,873.27/399,365.12
  6. Step 6: Final answer
    x = 411,490.56

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Why These Related Problems?

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