Home / 1,239,956.64-1,858,202.70-670,109.22

Finding the Fourth Proportional to 1,239,956.64, 1,858,202.70 and 670,109.22

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Solution

The fourth proportional to 1,239,956.64, 1,858,202.70 and 670,109.22 is: 1,004,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,956.64 : 1,858,202.70 = 670,109.22 : x
  2. Step 2: Convert to fraction form
    1,239,956.64/1,858,202.70 = 670,109.22/x
  3. Step 3: Cross multiply
    1,239,956.64x = 1,858,202.70 × 670,109.22
  4. Step 4: Simplify right side
    1,239,956.64x = 1,245,198,761,898.89
  5. Step 5: Solve for x
    x = 1,245,198,761,898.89/1,239,956.64
  6. Step 6: Final answer
    x = 1,004,227.67

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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.