Home / 419,861.30-629,733.02-120,367.44

Finding the Fourth Proportional to 419,861.30, 629,733.02 and 120,367.44

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Solution

The fourth proportional to 419,861.30, 629,733.02 and 120,367.44 is: 180,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,861.30 : 629,733.02 = 120,367.44 : x
  2. Step 2: Convert to fraction form
    419,861.30/629,733.02 = 120,367.44/x
  3. Step 3: Cross multiply
    419,861.30x = 629,733.02 × 120,367.44
  4. Step 4: Simplify right side
    419,861.30x = 75,799,350,899.03
  5. Step 5: Solve for x
    x = 75,799,350,899.03/419,861.30
  6. Step 6: Final answer
    x = 180,534.27

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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.