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Finding the Fourth Proportional to 486,662.20, 729,744.06 and 259,087.08

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Solution

The fourth proportional to 486,662.20, 729,744.06 and 259,087.08 is: 388,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,662.20 : 729,744.06 = 259,087.08 : x
  2. Step 2: Convert to fraction form
    486,662.20/729,744.06 = 259,087.08/x
  3. Step 3: Cross multiply
    486,662.20x = 729,744.06 × 259,087.08
  4. Step 4: Simplify right side
    486,662.20x = 189,067,257,652.75
  5. Step 5: Solve for x
    x = 189,067,257,652.75/486,662.20
  6. Step 6: Final answer
    x = 388,497.93

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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.