Home / 1,311,779.45-1,963,224.93-806,660.36

Finding the Fourth Proportional to 1,311,779.45, 1,963,224.93 and 806,660.36

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Solution

The fourth proportional to 1,311,779.45, 1,963,224.93 and 806,660.36 is: 1,207,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,779.45 : 1,963,224.93 = 806,660.36 : x
  2. Step 2: Convert to fraction form
    1,311,779.45/1,963,224.93 = 806,660.36/x
  3. Step 3: Cross multiply
    1,311,779.45x = 1,963,224.93 × 806,660.36
  4. Step 4: Simplify right side
    1,311,779.45x = 1,583,655,718,978.65
  5. Step 5: Solve for x
    x = 1,583,655,718,978.65/1,311,779.45
  6. Step 6: Final answer
    x = 1,207,257.61

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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.