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Finding the Fourth Proportional to 603,765.64, 905,734.56 and 204,520.66

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Solution

The fourth proportional to 603,765.64, 905,734.56 and 204,520.66 is: 306,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,765.64 : 905,734.56 = 204,520.66 : x
  2. Step 2: Convert to fraction form
    603,765.64/905,734.56 = 204,520.66/x
  3. Step 3: Cross multiply
    603,765.64x = 905,734.56 × 204,520.66
  4. Step 4: Simplify right side
    603,765.64x = 185,241,429,996.01
  5. Step 5: Solve for x
    x = 185,241,429,996.01/603,765.64
  6. Step 6: Final answer
    x = 306,810.16

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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.