Home / 627,832.22-866,438.08-355,905.39

Finding the Fourth Proportional to 627,832.22, 866,438.08 and 355,905.39

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Solution

The fourth proportional to 627,832.22, 866,438.08 and 355,905.39 is: 491,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,832.22 : 866,438.08 = 355,905.39 : x
  2. Step 2: Convert to fraction form
    627,832.22/866,438.08 = 355,905.39/x
  3. Step 3: Cross multiply
    627,832.22x = 866,438.08 × 355,905.39
  4. Step 4: Simplify right side
    627,832.22x = 308,369,982,773.25
  5. Step 5: Solve for x
    x = 308,369,982,773.25/627,832.22
  6. Step 6: Final answer
    x = 491,166.23

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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.