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Finding the Fourth Proportional to 500,606.82, 690,833.28 and 271,158.78

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Solution

The fourth proportional to 500,606.82, 690,833.28 and 271,158.78 is: 374,196.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,606.82 : 690,833.28 = 271,158.78 : x
  2. Step 2: Convert to fraction form
    500,606.82/690,833.28 = 271,158.78/x
  3. Step 3: Cross multiply
    500,606.82x = 690,833.28 × 271,158.78
  4. Step 4: Simplify right side
    500,606.82x = 187,325,509,388.20
  5. Step 5: Solve for x
    x = 187,325,509,388.20/500,606.82
  6. Step 6: Final answer
    x = 374,196.88

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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.