Home / 3,978,318.32-5,491,046.19-2,430,883.06

Finding the Fourth Proportional to 3,978,318.32, 5,491,046.19 and 2,430,883.06

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Solution

The fourth proportional to 3,978,318.32, 5,491,046.19 and 2,430,883.06 is: 3,355,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,318.32 : 5,491,046.19 = 2,430,883.06 : x
  2. Step 2: Convert to fraction form
    3,978,318.32/5,491,046.19 = 2,430,883.06/x
  3. Step 3: Cross multiply
    3,978,318.32x = 5,491,046.19 × 2,430,883.06
  4. Step 4: Simplify right side
    3,978,318.32x = 13,348,091,142,105.12
  5. Step 5: Solve for x
    x = 13,348,091,142,105.12/3,978,318.32
  6. Step 6: Final answer
    x = 3,355,209.43

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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.