Home / 500,456.21-690,629.92-271,015.29

Finding the Fourth Proportional to 500,456.21, 690,629.92 and 271,015.29

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Solution

The fourth proportional to 500,456.21, 690,629.92 and 271,015.29 is: 374,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,456.21 : 690,629.92 = 271,015.29 : x
  2. Step 2: Convert to fraction form
    500,456.21/690,629.92 = 271,015.29/x
  3. Step 3: Cross multiply
    500,456.21x = 690,629.92 × 271,015.29
  4. Step 4: Simplify right side
    500,456.21x = 187,171,267,373.94
  5. Step 5: Solve for x
    x = 187,171,267,373.94/500,456.21
  6. Step 6: Final answer
    x = 374,001.29

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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.