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Finding the Fourth Proportional to 494,600, 682,051.20 and 439,982.24

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Solution

The fourth proportional to 494,600, 682,051.20 and 439,982.24 is: 606,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,600 : 682,051.20 = 439,982.24 : x
  2. Step 2: Convert to fraction form
    494,600/682,051.20 = 439,982.24/x
  3. Step 3: Cross multiply
    494,600x = 682,051.20 × 439,982.24
  4. Step 4: Simplify right side
    494,600x = 300,090,414,770.69
  5. Step 5: Solve for x
    x = 300,090,414,770.69/494,600
  6. Step 6: Final answer
    x = 606,733.55

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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.