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Finding the Fourth Proportional to 627,730.20, 866,257.47 and 341,257.50

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Solution

The fourth proportional to 627,730.20, 866,257.47 and 341,257.50 is: 470,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,730.20 : 866,257.47 = 341,257.50 : x
  2. Step 2: Convert to fraction form
    627,730.20/866,257.47 = 341,257.50/x
  3. Step 3: Cross multiply
    627,730.20x = 866,257.47 × 341,257.50
  4. Step 4: Simplify right side
    627,730.20x = 295,616,858,568.53
  5. Step 5: Solve for x
    x = 295,616,858,568.53/627,730.20
  6. Step 6: Final answer
    x = 470,929.80

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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.