Home / 589,890.50-814,049.70-321,618.50

Finding the Fourth Proportional to 589,890.50, 814,049.70 and 321,618.50

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Solution

The fourth proportional to 589,890.50, 814,049.70 and 321,618.50 is: 443,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,890.50 : 814,049.70 = 321,618.50 : x
  2. Step 2: Convert to fraction form
    589,890.50/814,049.70 = 321,618.50/x
  3. Step 3: Cross multiply
    589,890.50x = 814,049.70 × 321,618.50
  4. Step 4: Simplify right side
    589,890.50x = 261,813,443,439.45
  5. Step 5: Solve for x
    x = 261,813,443,439.45/589,890.50
  6. Step 6: Final answer
    x = 443,833.97

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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.