Finding the Fourth Proportional to 545,710.99, 818,986.80 and 439,355.15
Calculator
Solution
The fourth proportional to 545,710.99, 818,986.80 and 439,355.15 is: 659,371.12
Step by Step Solution
- Step 1: Write the proportion equation
545,710.99 : 818,986.80 = 439,355.15 : x - Step 2: Convert to fraction form
545,710.99/818,986.80 = 439,355.15/x - Step 3: Cross multiply
545,710.99x = 818,986.80 × 439,355.15 - Step 4: Simplify right side
545,710.99x = 359,826,068,362.02 - Step 5: Solve for x
x = 359,826,068,362.02/545,710.99 - Step 6: Final answer
x = 659,371.12
Related Problems
Find fourth proportional to 272,855.50, 409,493.40 and 219,677.58
Half scale
Find fourth proportional to 1,091,421.98, 1,637,973.60 and 878,710.30
Double scale
Find fourth proportional to 545,711.99, 818,988.30 and 439,356.15
Similar ratio
Find fourth proportional to 818,566.49, 1,228,480.20 and 659,032.73
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.