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Finding the Fourth Proportional to 874,369.48, 1,311,601.02 and 275,377.30

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Solution

The fourth proportional to 874,369.48, 1,311,601.02 and 275,377.30 is: 413,080.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,369.48 : 1,311,601.02 = 275,377.30 : x
  2. Step 2: Convert to fraction form
    874,369.48/1,311,601.02 = 275,377.30/x
  3. Step 3: Cross multiply
    874,369.48x = 1,311,601.02 × 275,377.30
  4. Step 4: Simplify right side
    874,369.48x = 361,185,147,564.85
  5. Step 5: Solve for x
    x = 361,185,147,564.85/874,369.48
  6. Step 6: Final answer
    x = 413,080.69

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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.