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Finding the Fourth Proportional to 494,607.82, 682,531.77 and 279,790.96

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Solution

The fourth proportional to 494,607.82, 682,531.77 and 279,790.96 is: 386,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,607.82 : 682,531.77 = 279,790.96 : x
  2. Step 2: Convert to fraction form
    494,607.82/682,531.77 = 279,790.96/x
  3. Step 3: Cross multiply
    494,607.82x = 682,531.77 × 279,790.96
  4. Step 4: Simplify right side
    494,607.82x = 190,966,219,158.80
  5. Step 5: Solve for x
    x = 190,966,219,158.80/494,607.82
  6. Step 6: Final answer
    x = 386,096.24

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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.