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Finding the Fourth Proportional to 863,773.12, 1,192,008.72 and 481,790.08

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Solution

The fourth proportional to 863,773.12, 1,192,008.72 and 481,790.08 is: 664,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,773.12 : 1,192,008.72 = 481,790.08 : x
  2. Step 2: Convert to fraction form
    863,773.12/1,192,008.72 = 481,790.08/x
  3. Step 3: Cross multiply
    863,773.12x = 1,192,008.72 × 481,790.08
  4. Step 4: Simplify right side
    863,773.12x = 574,297,976,569.50
  5. Step 5: Solve for x
    x = 574,297,976,569.50/863,773.12
  6. Step 6: Final answer
    x = 664,871.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.