Home / 775,942.78-1,164,198.46-326,776.72

Finding the Fourth Proportional to 775,942.78, 1,164,198.46 and 326,776.72

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Solution

The fourth proportional to 775,942.78, 1,164,198.46 and 326,776.72 is: 490,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,942.78 : 1,164,198.46 = 326,776.72 : x
  2. Step 2: Convert to fraction form
    775,942.78/1,164,198.46 = 326,776.72/x
  3. Step 3: Cross multiply
    775,942.78x = 1,164,198.46 × 326,776.72
  4. Step 4: Simplify right side
    775,942.78x = 380,432,954,187.85
  5. Step 5: Solve for x
    x = 380,432,954,187.85/775,942.78
  6. Step 6: Final answer
    x = 490,284.80

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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.