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Finding the Fourth Proportional to 627,864.60, 866,429.46 and 341,374.80

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Solution

The fourth proportional to 627,864.60, 866,429.46 and 341,374.80 is: 471,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,864.60 : 866,429.46 = 341,374.80 : x
  2. Step 2: Convert to fraction form
    627,864.60/866,429.46 = 341,374.80/x
  3. Step 3: Cross multiply
    627,864.60x = 866,429.46 × 341,374.80
  4. Step 4: Simplify right side
    627,864.60x = 295,777,183,621.61
  5. Step 5: Solve for x
    x = 295,777,183,621.61/627,864.60
  6. Step 6: Final answer
    x = 471,084.34

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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.