Home / 1,260,635.26-1,890,969.30-419,187

Finding the Fourth Proportional to 1,260,635.26, 1,890,969.30 and 419,187

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Solution

The fourth proportional to 1,260,635.26, 1,890,969.30 and 419,187 is: 628,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,635.26 : 1,890,969.30 = 419,187 : x
  2. Step 2: Convert to fraction form
    1,260,635.26/1,890,969.30 = 419,187/x
  3. Step 3: Cross multiply
    1,260,635.26x = 1,890,969.30 × 419,187
  4. Step 4: Simplify right side
    1,260,635.26x = 792,669,747,959.10
  5. Step 5: Solve for x
    x = 792,669,747,959.10/1,260,635.26
  6. Step 6: Final answer
    x = 628,785.96

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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.