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Finding the Fourth Proportional to 627,813.60, 941,374.80 and 206,872.80

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Solution

The fourth proportional to 627,813.60, 941,374.80 and 206,872.80 is: 310,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,813.60 : 941,374.80 = 206,872.80 : x
  2. Step 2: Convert to fraction form
    627,813.60/941,374.80 = 206,872.80/x
  3. Step 3: Cross multiply
    627,813.60x = 941,374.80 × 206,872.80
  4. Step 4: Simplify right side
    627,813.60x = 194,744,840,725.44
  5. Step 5: Solve for x
    x = 194,744,840,725.44/627,813.60
  6. Step 6: Final answer
    x = 310,195.32

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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.