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Finding the Fourth Proportional to 500,603.66, 690,833.75 and 271,163.42

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Solution

The fourth proportional to 500,603.66, 690,833.75 and 271,163.42 is: 374,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,603.66 : 690,833.75 = 271,163.42 : x
  2. Step 2: Convert to fraction form
    500,603.66/690,833.75 = 271,163.42/x
  3. Step 3: Cross multiply
    500,603.66x = 690,833.75 × 271,163.42
  4. Step 4: Simplify right side
    500,603.66x = 187,328,842,301.43
  5. Step 5: Solve for x
    x = 187,328,842,301.43/500,603.66
  6. Step 6: Final answer
    x = 374,205.90

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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.