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Finding the Fourth Proportional to 874,369.85, 1,311,601.61 and 275,377.68

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Solution

The fourth proportional to 874,369.85, 1,311,601.61 and 275,377.68 is: 413,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,369.85 : 1,311,601.61 = 275,377.68 : x
  2. Step 2: Convert to fraction form
    874,369.85/1,311,601.61 = 275,377.68/x
  3. Step 3: Cross multiply
    874,369.85x = 1,311,601.61 × 275,377.68
  4. Step 4: Simplify right side
    874,369.85x = 361,185,809,134.51
  5. Step 5: Solve for x
    x = 361,185,809,134.51/874,369.85
  6. Step 6: Final answer
    x = 413,081.27

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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.