Finding the Fourth Proportional to 890,181.80, 1,335,143.10 and 259,029.80
Calculator
Solution
The fourth proportional to 890,181.80, 1,335,143.10 and 259,029.80 is: 388,506.99
Step by Step Solution
- Step 1: Write the proportion equation
890,181.80 : 1,335,143.10 = 259,029.80 : x - Step 2: Convert to fraction form
890,181.80/1,335,143.10 = 259,029.80/x - Step 3: Cross multiply
890,181.80x = 1,335,143.10 × 259,029.80 - Step 4: Simplify right side
890,181.80x = 345,841,850,164.38 - Step 5: Solve for x
x = 345,841,850,164.38/890,181.80 - Step 6: Final answer
x = 388,506.99
Related Problems
Find fourth proportional to 445,090.90, 667,571.55 and 129,514.90
Half scale
Find fourth proportional to 1,780,363.60, 2,670,286.20 and 518,059.60
Double scale
Find fourth proportional to 890,182.80, 1,335,144.60 and 259,030.80
Similar ratio
Find fourth proportional to 1,335,272.70, 2,002,714.65 and 388,544.70
1.5x scale
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.