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Finding the Fourth Proportional to 494,888.90, 682,954.62 and 268,534.40

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Solution

The fourth proportional to 494,888.90, 682,954.62 and 268,534.40 is: 370,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,888.90 : 682,954.62 = 268,534.40 : x
  2. Step 2: Convert to fraction form
    494,888.90/682,954.62 = 268,534.40/x
  3. Step 3: Cross multiply
    494,888.90x = 682,954.62 × 268,534.40
  4. Step 4: Simplify right side
    494,888.90x = 183,396,809,108.93
  5. Step 5: Solve for x
    x = 183,396,809,108.93/494,888.90
  6. Step 6: Final answer
    x = 370,581.78

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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.