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Finding the Fourth Proportional to 874,403.62, 1,311,652.44 and 275,411.66

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Solution

The fourth proportional to 874,403.62, 1,311,652.44 and 275,411.66 is: 413,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,403.62 : 1,311,652.44 = 275,411.66 : x
  2. Step 2: Convert to fraction form
    874,403.62/1,311,652.44 = 275,411.66/x
  3. Step 3: Cross multiply
    874,403.62x = 1,311,652.44 × 275,411.66
  4. Step 4: Simplify right side
    874,403.62x = 361,244,369,285.19
  5. Step 5: Solve for x
    x = 361,244,369,285.19/874,403.62
  6. Step 6: Final answer
    x = 413,132.29

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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.