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Finding the Fourth Proportional to 660,581.03, 911,546.16 and 366,238.62

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Solution

The fourth proportional to 660,581.03, 911,546.16 and 366,238.62 is: 505,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,581.03 : 911,546.16 = 366,238.62 : x
  2. Step 2: Convert to fraction form
    660,581.03/911,546.16 = 366,238.62/x
  3. Step 3: Cross multiply
    660,581.03x = 911,546.16 × 366,238.62
  4. Step 4: Simplify right side
    660,581.03x = 333,843,404,286.40
  5. Step 5: Solve for x
    x = 333,843,404,286.40/660,581.03
  6. Step 6: Final answer
    x = 505,378.43

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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.