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Finding the Fourth Proportional to 666,449.12, 919,696.99 and 360,524.73

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Solution

The fourth proportional to 666,449.12, 919,696.99 and 360,524.73 is: 497,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,449.12 : 919,696.99 = 360,524.73 : x
  2. Step 2: Convert to fraction form
    666,449.12/919,696.99 = 360,524.73/x
  3. Step 3: Cross multiply
    666,449.12x = 919,696.99 × 360,524.73
  4. Step 4: Simplify right side
    666,449.12x = 331,573,504,403.08
  5. Step 5: Solve for x
    x = 331,573,504,403.08/666,449.12
  6. Step 6: Final answer
    x = 497,522.61

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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.