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Finding the Fourth Proportional to 627,973.72, 866,609.90 and 341,500

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Solution

The fourth proportional to 627,973.72, 866,609.90 and 341,500 is: 471,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,973.72 : 866,609.90 = 341,500 : x
  2. Step 2: Convert to fraction form
    627,973.72/866,609.90 = 341,500/x
  3. Step 3: Cross multiply
    627,973.72x = 866,609.90 × 341,500
  4. Step 4: Simplify right side
    627,973.72x = 295,947,280,850
  5. Step 5: Solve for x
    x = 295,947,280,850/627,973.72
  6. Step 6: Final answer
    x = 471,273.35

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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.