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Finding the Fourth Proportional to 504,969.19, 696,872.06 and 278,629.27

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Solution

The fourth proportional to 504,969.19, 696,872.06 and 278,629.27 is: 384,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,969.19 : 696,872.06 = 278,629.27 : x
  2. Step 2: Convert to fraction form
    504,969.19/696,872.06 = 278,629.27/x
  3. Step 3: Cross multiply
    504,969.19x = 696,872.06 × 278,629.27
  4. Step 4: Simplify right side
    504,969.19x = 194,168,951,270.73
  5. Step 5: Solve for x
    x = 194,168,951,270.73/504,969.19
  6. Step 6: Final answer
    x = 384,516.43

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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.