Home / 437,516.20-656,274.30-279,922.60

Finding the Fourth Proportional to 437,516.20, 656,274.30 and 279,922.60

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Solution

The fourth proportional to 437,516.20, 656,274.30 and 279,922.60 is: 419,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,516.20 : 656,274.30 = 279,922.60 : x
  2. Step 2: Convert to fraction form
    437,516.20/656,274.30 = 279,922.60/x
  3. Step 3: Cross multiply
    437,516.20x = 656,274.30 × 279,922.60
  4. Step 4: Simplify right side
    437,516.20x = 183,706,008,369.18
  5. Step 5: Solve for x
    x = 183,706,008,369.18/437,516.20
  6. Step 6: Final answer
    x = 419,883.90

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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.