Home / 669,512.44-1,004,438.64-309,942.52

Finding the Fourth Proportional to 669,512.44, 1,004,438.64 and 309,942.52

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Solution

The fourth proportional to 669,512.44, 1,004,438.64 and 309,942.52 is: 464,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,512.44 : 1,004,438.64 = 309,942.52 : x
  2. Step 2: Convert to fraction form
    669,512.44/1,004,438.64 = 309,942.52/x
  3. Step 3: Cross multiply
    669,512.44x = 1,004,438.64 × 309,942.52
  4. Step 4: Simplify right side
    669,512.44x = 311,318,243,266.97
  5. Step 5: Solve for x
    x = 311,318,243,266.97/669,512.44
  6. Step 6: Final answer
    x = 464,992.47

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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.