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Finding the Fourth Proportional to 443,389.37, 665,059.37 and 394,034.24

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Solution

The fourth proportional to 443,389.37, 665,059.37 and 394,034.24 is: 591,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,389.37 : 665,059.37 = 394,034.24 : x
  2. Step 2: Convert to fraction form
    443,389.37/665,059.37 = 394,034.24/x
  3. Step 3: Cross multiply
    443,389.37x = 665,059.37 × 394,034.24
  4. Step 4: Simplify right side
    443,389.37x = 262,056,158,117.36
  5. Step 5: Solve for x
    x = 262,056,158,117.36/443,389.37
  6. Step 6: Final answer
    x = 591,029.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.