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Finding the Fourth Proportional to 493,844.86, 739,994.55 and 381,801.21

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Solution

The fourth proportional to 493,844.86, 739,994.55 and 381,801.21 is: 572,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,844.86 : 739,994.55 = 381,801.21 : x
  2. Step 2: Convert to fraction form
    493,844.86/739,994.55 = 381,801.21/x
  3. Step 3: Cross multiply
    493,844.86x = 739,994.55 × 381,801.21
  4. Step 4: Simplify right side
    493,844.86x = 282,530,814,583.41
  5. Step 5: Solve for x
    x = 282,530,814,583.41/493,844.86
  6. Step 6: Final answer
    x = 572,104.39

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1.5x scale

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.