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Finding the Fourth Proportional to 400,251.56, 599,588.39 and 325,456.16

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Solution

The fourth proportional to 400,251.56, 599,588.39 and 325,456.16 is: 487,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,251.56 : 599,588.39 = 325,456.16 : x
  2. Step 2: Convert to fraction form
    400,251.56/599,588.39 = 325,456.16/x
  3. Step 3: Cross multiply
    400,251.56x = 599,588.39 × 325,456.16
  4. Step 4: Simplify right side
    400,251.56x = 195,139,734,989.98
  5. Step 5: Solve for x
    x = 195,139,734,989.98/400,251.56
  6. Step 6: Final answer
    x = 487,542.72

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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.