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Finding the Fourth Proportional to 627,879.53, 866,467.73 and 341,399.68

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Solution

The fourth proportional to 627,879.53, 866,467.73 and 341,399.68 is: 471,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,879.53 : 866,467.73 = 341,399.68 : x
  2. Step 2: Convert to fraction form
    627,879.53/866,467.73 = 341,399.68/x
  3. Step 3: Cross multiply
    627,879.53x = 866,467.73 × 341,399.68
  4. Step 4: Simplify right side
    627,879.53x = 295,811,804,439.66
  5. Step 5: Solve for x
    x = 295,811,804,439.66/627,879.53
  6. Step 6: Final answer
    x = 471,128.28

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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.