Home / 451,826.49-677,299.10-215,105.61

Finding the Fourth Proportional to 451,826.49, 677,299.10 and 215,105.61

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Solution

The fourth proportional to 451,826.49, 677,299.10 and 215,105.61 is: 322,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,826.49 : 677,299.10 = 215,105.61 : x
  2. Step 2: Convert to fraction form
    451,826.49/677,299.10 = 215,105.61/x
  3. Step 3: Cross multiply
    451,826.49x = 677,299.10 × 215,105.61
  4. Step 4: Simplify right side
    451,826.49x = 145,690,834,982.42
  5. Step 5: Solve for x
    x = 145,690,834,982.42/451,826.49
  6. Step 6: Final answer
    x = 322,448.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.