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Finding the Fourth Proportional to 629,086.14, 868,163.45 and 357,179.37

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Solution

The fourth proportional to 629,086.14, 868,163.45 and 357,179.37 is: 492,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,086.14 : 868,163.45 = 357,179.37 : x
  2. Step 2: Convert to fraction form
    629,086.14/868,163.45 = 357,179.37/x
  3. Step 3: Cross multiply
    629,086.14x = 868,163.45 × 357,179.37
  4. Step 4: Simplify right side
    629,086.14x = 310,090,069,787.21
  5. Step 5: Solve for x
    x = 310,090,069,787.21/629,086.14
  6. Step 6: Final answer
    x = 492,921.48

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1.5x scale

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.