Finding the Fourth Proportional to 543,299.10, 815,485.01 and 407,892.21
Calculator
Solution
The fourth proportional to 543,299.10, 815,485.01 and 407,892.21 is: 612,240.99
Step by Step Solution
- Step 1: Write the proportion equation
543,299.10 : 815,485.01 = 407,892.21 : x - Step 2: Convert to fraction form
543,299.10/815,485.01 = 407,892.21/x - Step 3: Cross multiply
543,299.10x = 815,485.01 × 407,892.21 - Step 4: Simplify right side
543,299.10x = 332,629,980,911.31 - Step 5: Solve for x
x = 332,629,980,911.31/543,299.10 - Step 6: Final answer
x = 612,240.99
Related Problems
Find fourth proportional to 271,649.55, 407,742.50 and 203,946.11
Half scale
Find fourth proportional to 1,086,598.20, 1,630,970.01 and 815,784.42
Double scale
Find fourth proportional to 543,300.10, 815,486.51 and 407,893.21
Similar ratio
Find fourth proportional to 814,948.65, 1,223,227.51 and 611,838.32
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.