Home / 1,280,350.24-1,766,328.26-770,757.38

Finding the Fourth Proportional to 1,280,350.24, 1,766,328.26 and 770,757.38

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Solution

The fourth proportional to 1,280,350.24, 1,766,328.26 and 770,757.38 is: 1,063,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,350.24 : 1,766,328.26 = 770,757.38 : x
  2. Step 2: Convert to fraction form
    1,280,350.24/1,766,328.26 = 770,757.38/x
  3. Step 3: Cross multiply
    1,280,350.24x = 1,766,328.26 × 770,757.38
  4. Step 4: Simplify right side
    1,280,350.24x = 1,361,410,541,897.56
  5. Step 5: Solve for x
    x = 1,361,410,541,897.56/1,280,350.24
  6. Step 6: Final answer
    x = 1,063,311.04

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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.