Home / 1,280,665.92-1,767,324.48-699,900.96

Finding the Fourth Proportional to 1,280,665.92, 1,767,324.48 and 699,900.96

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Solution

The fourth proportional to 1,280,665.92, 1,767,324.48 and 699,900.96 is: 965,866.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,665.92 : 1,767,324.48 = 699,900.96 : x
  2. Step 2: Convert to fraction form
    1,280,665.92/1,767,324.48 = 699,900.96/x
  3. Step 3: Cross multiply
    1,280,665.92x = 1,767,324.48 × 699,900.96
  4. Step 4: Simplify right side
    1,280,665.92x = 1,236,952,100,183.50
  5. Step 5: Solve for x
    x = 1,236,952,100,183.50/1,280,665.92
  6. Step 6: Final answer
    x = 965,866.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.