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Finding the Fourth Proportional to 629,394.72, 868,886.37 and 426,517.53

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Solution

The fourth proportional to 629,394.72, 868,886.37 and 426,517.53 is: 588,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,394.72 : 868,886.37 = 426,517.53 : x
  2. Step 2: Convert to fraction form
    629,394.72/868,886.37 = 426,517.53/x
  3. Step 3: Cross multiply
    629,394.72x = 868,886.37 × 426,517.53
  4. Step 4: Simplify right side
    629,394.72x = 370,595,268,383.07
  5. Step 5: Solve for x
    x = 370,595,268,383.07/629,394.72
  6. Step 6: Final answer
    x = 588,812.17

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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.