Home / 1,228,704.31-1,843,057.05-387,321.67

Finding the Fourth Proportional to 1,228,704.31, 1,843,057.05 and 387,321.67

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Solution

The fourth proportional to 1,228,704.31, 1,843,057.05 and 387,321.67 is: 580,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,704.31 : 1,843,057.05 = 387,321.67 : x
  2. Step 2: Convert to fraction form
    1,228,704.31/1,843,057.05 = 387,321.67/x
  3. Step 3: Cross multiply
    1,228,704.31x = 1,843,057.05 × 387,321.67
  4. Step 4: Simplify right side
    1,228,704.31x = 713,855,934,511.27
  5. Step 5: Solve for x
    x = 713,855,934,511.27/1,228,704.31
  6. Step 6: Final answer
    x = 580,982.69

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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.