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Finding the Fourth Proportional to 627,829.22, 866,433.94 and 355,902.39

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Solution

The fourth proportional to 627,829.22, 866,433.94 and 355,902.39 is: 491,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,829.22 : 866,433.94 = 355,902.39 : x
  2. Step 2: Convert to fraction form
    627,829.22/866,433.94 = 355,902.39/x
  3. Step 3: Cross multiply
    627,829.22x = 866,433.94 × 355,902.39
  4. Step 4: Simplify right side
    627,829.22x = 308,365,909,133.36
  5. Step 5: Solve for x
    x = 308,365,909,133.36/627,829.22
  6. Step 6: Final answer
    x = 491,162.08

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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.