Finding the Fourth Proportional to 414,065.68, 620,962.36 and 129,755.60
Calculator
Solution
The fourth proportional to 414,065.68, 620,962.36 and 129,755.60 is: 194,590.73
Step by Step Solution
- Step 1: Write the proportion equation
414,065.68 : 620,962.36 = 129,755.60 : x - Step 2: Convert to fraction form
414,065.68/620,962.36 = 129,755.60/x - Step 3: Cross multiply
414,065.68x = 620,962.36 × 129,755.60 - Step 4: Simplify right side
414,065.68x = 80,573,343,599.22 - Step 5: Solve for x
x = 80,573,343,599.22/414,065.68 - Step 6: Final answer
x = 194,590.73
Related Problems
Find fourth proportional to 207,032.84, 310,481.18 and 64,877.80
Half scale
Find fourth proportional to 828,131.36, 1,241,924.72 and 259,511.20
Double scale
Find fourth proportional to 414,066.68, 620,963.86 and 129,756.60
Similar ratio
Find fourth proportional to 621,098.52, 931,443.54 and 194,633.40
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.