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Finding the Fourth Proportional to 627,630.48, 866,127.60 and 341,149.68

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Solution

The fourth proportional to 627,630.48, 866,127.60 and 341,149.68 is: 470,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,630.48 : 866,127.60 = 341,149.68 : x
  2. Step 2: Convert to fraction form
    627,630.48/866,127.60 = 341,149.68/x
  3. Step 3: Cross multiply
    627,630.48x = 866,127.60 × 341,149.68
  4. Step 4: Simplify right side
    627,630.48x = 295,479,153,579.17
  5. Step 5: Solve for x
    x = 295,479,153,579.17/627,630.48
  6. Step 6: Final answer
    x = 470,785.22

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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.