Home / 809,150.78-1,213,886.07-296,820.68

Finding the Fourth Proportional to 809,150.78, 1,213,886.07 and 296,820.68

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Solution

The fourth proportional to 809,150.78, 1,213,886.07 and 296,820.68 is: 445,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,150.78 : 1,213,886.07 = 296,820.68 : x
  2. Step 2: Convert to fraction form
    809,150.78/1,213,886.07 = 296,820.68/x
  3. Step 3: Cross multiply
    809,150.78x = 1,213,886.07 × 296,820.68
  4. Step 4: Simplify right side
    809,150.78x = 360,306,481,186.39
  5. Step 5: Solve for x
    x = 360,306,481,186.39/809,150.78
  6. Step 6: Final answer
    x = 445,289.67

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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.