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Finding the Fourth Proportional to 494,302.51, 682,166.91 and 279,462.61

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Solution

The fourth proportional to 494,302.51, 682,166.91 and 279,462.61 is: 385,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,302.51 : 682,166.91 = 279,462.61 : x
  2. Step 2: Convert to fraction form
    494,302.51/682,166.91 = 279,462.61/x
  3. Step 3: Cross multiply
    494,302.51x = 682,166.91 × 279,462.61
  4. Step 4: Simplify right side
    494,302.51x = 190,640,145,124.24
  5. Step 5: Solve for x
    x = 190,640,145,124.24/494,302.51
  6. Step 6: Final answer
    x = 385,675.05

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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.