Finding the Fourth Proportional to 841,279, 1,261,921.20 and 210,192.88
Calculator
Solution
The fourth proportional to 841,279, 1,261,921.20 and 210,192.88 is: 315,289.99
Step by Step Solution
- Step 1: Write the proportion equation
841,279 : 1,261,921.20 = 210,192.88 : x - Step 2: Convert to fraction form
841,279/1,261,921.20 = 210,192.88/x - Step 3: Cross multiply
841,279x = 1,261,921.20 × 210,192.88 - Step 4: Simplify right side
841,279x = 265,246,851,361.06 - Step 5: Solve for x
x = 265,246,851,361.06/841,279 - Step 6: Final answer
x = 315,289.99
Related Problems
Find fourth proportional to 420,639.50, 630,960.60 and 105,096.44
Half scale
Find fourth proportional to 1,682,558, 2,523,842.40 and 420,385.76
Double scale
Find fourth proportional to 841,280, 1,261,922.70 and 210,193.88
Similar ratio
Find fourth proportional to 1,261,918.50, 1,892,881.80 and 315,289.32
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.