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Finding the Fourth Proportional to 894,015.80, 1,340,894.10 and 262,863.80

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Solution

The fourth proportional to 894,015.80, 1,340,894.10 and 262,863.80 is: 394,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,015.80 : 1,340,894.10 = 262,863.80 : x
  2. Step 2: Convert to fraction form
    894,015.80/1,340,894.10 = 262,863.80/x
  3. Step 3: Cross multiply
    894,015.80x = 1,340,894.10 × 262,863.80
  4. Step 4: Simplify right side
    894,015.80x = 352,472,518,523.58
  5. Step 5: Solve for x
    x = 352,472,518,523.58/894,015.80
  6. Step 6: Final answer
    x = 394,257.59

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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.