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Finding the Fourth Proportional to 627,787.56, 866,356.28 and 341,307

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Solution

The fourth proportional to 627,787.56, 866,356.28 and 341,307 is: 471,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,787.56 : 866,356.28 = 341,307 : x
  2. Step 2: Convert to fraction form
    627,787.56/866,356.28 = 341,307/x
  3. Step 3: Cross multiply
    627,787.56x = 866,356.28 × 341,307
  4. Step 4: Simplify right side
    627,787.56x = 295,693,462,857.96
  5. Step 5: Solve for x
    x = 295,693,462,857.96/627,787.56
  6. Step 6: Final answer
    x = 471,008.80

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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.