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Finding the Fourth Proportional to 400,080.36, 600,416.46 and 322,135.68

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Solution

The fourth proportional to 400,080.36, 600,416.46 and 322,135.68 is: 483,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,080.36 : 600,416.46 = 322,135.68 : x
  2. Step 2: Convert to fraction form
    400,080.36/600,416.46 = 322,135.68/x
  3. Step 3: Cross multiply
    400,080.36x = 600,416.46 × 322,135.68
  4. Step 4: Simplify right side
    400,080.36x = 193,415,564,625.29
  5. Step 5: Solve for x
    x = 193,415,564,625.29/400,080.36
  6. Step 6: Final answer
    x = 483,441.79

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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.