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Finding the Fourth Proportional to 449,596.69, 674,727.95 and 212,940.11

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Solution

The fourth proportional to 449,596.69, 674,727.95 and 212,940.11 is: 319,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,596.69 : 674,727.95 = 212,940.11 : x
  2. Step 2: Convert to fraction form
    449,596.69/674,727.95 = 212,940.11/x
  3. Step 3: Cross multiply
    449,596.69x = 674,727.95 × 212,940.11
  4. Step 4: Simplify right side
    449,596.69x = 143,676,639,454.73
  5. Step 5: Solve for x
    x = 143,676,639,454.73/449,596.69
  6. Step 6: Final answer
    x = 319,567.83

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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.