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Finding the Fourth Proportional to 494,777.89, 682,371.53 and 380,333.80

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Solution

The fourth proportional to 494,777.89, 682,371.53 and 380,333.80 is: 524,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,777.89 : 682,371.53 = 380,333.80 : x
  2. Step 2: Convert to fraction form
    494,777.89/682,371.53 = 380,333.80/x
  3. Step 3: Cross multiply
    494,777.89x = 682,371.53 × 380,333.80
  4. Step 4: Simplify right side
    494,777.89x = 259,528,956,261.62
  5. Step 5: Solve for x
    x = 259,528,956,261.62/494,777.89
  6. Step 6: Final answer
    x = 524,536.29

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1.5x scale

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.