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Finding the Fourth Proportional to 482,616, 666,010.62 and 281,450.88

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Solution

The fourth proportional to 482,616, 666,010.62 and 281,450.88 is: 388,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,616 : 666,010.62 = 281,450.88 : x
  2. Step 2: Convert to fraction form
    482,616/666,010.62 = 281,450.88/x
  3. Step 3: Cross multiply
    482,616x = 666,010.62 × 281,450.88
  4. Step 4: Simplify right side
    482,616x = 187,449,275,088.35
  5. Step 5: Solve for x
    x = 187,449,275,088.35/482,616
  6. Step 6: Final answer
    x = 388,402.53

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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.