Home / 411,604.27-617,517.24-211,815.75

Finding the Fourth Proportional to 411,604.27, 617,517.24 and 211,815.75

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Solution

The fourth proportional to 411,604.27, 617,517.24 and 211,815.75 is: 317,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,604.27 : 617,517.24 = 211,815.75 : x
  2. Step 2: Convert to fraction form
    411,604.27/617,517.24 = 211,815.75/x
  3. Step 3: Cross multiply
    411,604.27x = 617,517.24 × 211,815.75
  4. Step 4: Simplify right side
    411,604.27x = 130,799,877,328.53
  5. Step 5: Solve for x
    x = 130,799,877,328.53/411,604.27
  6. Step 6: Final answer
    x = 317,780.66

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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.