Home / 1,280,620.20-1,767,281.20-699,879.28

Finding the Fourth Proportional to 1,280,620.20, 1,767,281.20 and 699,879.28

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Solution

The fourth proportional to 1,280,620.20, 1,767,281.20 and 699,879.28 is: 965,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,620.20 : 1,767,281.20 = 699,879.28 : x
  2. Step 2: Convert to fraction form
    1,280,620.20/1,767,281.20 = 699,879.28/x
  3. Step 3: Cross multiply
    1,280,620.20x = 1,767,281.20 × 699,879.28
  4. Step 4: Simplify right side
    1,280,620.20x = 1,236,883,493,813.54
  5. Step 5: Solve for x
    x = 1,236,883,493,813.54/1,280,620.20
  6. Step 6: Final answer
    x = 965,847.25

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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.