Home / 443,440.07-665,135.52-394,084.94

Finding the Fourth Proportional to 443,440.07, 665,135.52 and 394,084.94

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Solution

The fourth proportional to 443,440.07, 665,135.52 and 394,084.94 is: 591,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,440.07 : 665,135.52 = 394,084.94 : x
  2. Step 2: Convert to fraction form
    443,440.07/665,135.52 = 394,084.94/x
  3. Step 3: Cross multiply
    443,440.07x = 665,135.52 × 394,084.94
  4. Step 4: Simplify right side
    443,440.07x = 262,119,891,491.07
  5. Step 5: Solve for x
    x = 262,119,891,491.07/443,440.07
  6. Step 6: Final answer
    x = 591,105.56

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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.