Home / 443,729.01-663,617.12-394,131.09

Finding the Fourth Proportional to 443,729.01, 663,617.12 and 394,131.09

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Solution

The fourth proportional to 443,729.01, 663,617.12 and 394,131.09 is: 589,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,729.01 : 663,617.12 = 394,131.09 : x
  2. Step 2: Convert to fraction form
    443,729.01/663,617.12 = 394,131.09/x
  3. Step 3: Cross multiply
    443,729.01x = 663,617.12 × 394,131.09
  4. Step 4: Simplify right side
    443,729.01x = 261,552,136,877.61
  5. Step 5: Solve for x
    x = 261,552,136,877.61/443,729.01
  6. Step 6: Final answer
    x = 589,441.15

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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.