Home / 793,414.80-1,189,879.20-260,812.80

Finding the Fourth Proportional to 793,414.80, 1,189,879.20 and 260,812.80

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Solution

The fourth proportional to 793,414.80, 1,189,879.20 and 260,812.80 is: 391,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,414.80 : 1,189,879.20 = 260,812.80 : x
  2. Step 2: Convert to fraction form
    793,414.80/1,189,879.20 = 260,812.80/x
  3. Step 3: Cross multiply
    793,414.80x = 1,189,879.20 × 260,812.80
  4. Step 4: Simplify right side
    793,414.80x = 310,335,725,813.76
  5. Step 5: Solve for x
    x = 310,335,725,813.76/793,414.80
  6. Step 6: Final answer
    x = 391,139.32

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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.