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Finding the Fourth Proportional to 603,765.12, 905,811.06 and 204,405.96

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Solution

The fourth proportional to 603,765.12, 905,811.06 and 204,405.96 is: 306,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,765.12 : 905,811.06 = 204,405.96 : x
  2. Step 2: Convert to fraction form
    603,765.12/905,811.06 = 204,405.96/x
  3. Step 3: Cross multiply
    603,765.12x = 905,811.06 × 204,405.96
  4. Step 4: Simplify right side
    603,765.12x = 185,153,179,297.92
  5. Step 5: Solve for x
    x = 185,153,179,297.92/603,765.12
  6. Step 6: Final answer
    x = 306,664.25

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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.