Home / 1,361,315.92-2,043,234.24-687,871.12

Finding the Fourth Proportional to 1,361,315.92, 2,043,234.24 and 687,871.12

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Solution

The fourth proportional to 1,361,315.92, 2,043,234.24 and 687,871.12 is: 1,032,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,315.92 : 2,043,234.24 = 687,871.12 : x
  2. Step 2: Convert to fraction form
    1,361,315.92/2,043,234.24 = 687,871.12/x
  3. Step 3: Cross multiply
    1,361,315.92x = 2,043,234.24 × 687,871.12
  4. Step 4: Simplify right side
    1,361,315.92x = 1,405,481,825,091.15
  5. Step 5: Solve for x
    x = 1,405,481,825,091.15/1,361,315.92
  6. Step 6: Final answer
    x = 1,032,443.54

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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.