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Finding the Fourth Proportional to 627,760.64, 866,319.54 and 341,281.82

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Solution

The fourth proportional to 627,760.64, 866,319.54 and 341,281.82 is: 470,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,760.64 : 866,319.54 = 341,281.82 : x
  2. Step 2: Convert to fraction form
    627,760.64/866,319.54 = 341,281.82/x
  3. Step 3: Cross multiply
    627,760.64x = 866,319.54 × 341,281.82
  4. Step 4: Simplify right side
    627,760.64x = 295,659,109,312.76
  5. Step 5: Solve for x
    x = 295,659,109,312.76/627,760.64
  6. Step 6: Final answer
    x = 470,974.27

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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.