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Finding the Fourth Proportional to 892,874.88, 1,339,499.52 and 261,737.28

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Solution

The fourth proportional to 892,874.88, 1,339,499.52 and 261,737.28 is: 392,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,874.88 : 1,339,499.52 = 261,737.28 : x
  2. Step 2: Convert to fraction form
    892,874.88/1,339,499.52 = 261,737.28/x
  3. Step 3: Cross multiply
    892,874.88x = 1,339,499.52 × 261,737.28
  4. Step 4: Simplify right side
    892,874.88x = 350,596,960,926.11
  5. Step 5: Solve for x
    x = 350,596,960,926.11/892,874.88
  6. Step 6: Final answer
    x = 392,660.80

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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.