Finding the Fourth Proportional to 483,038.40, 724,687.20 and 430,809.60
Calculator
Solution
The fourth proportional to 483,038.40, 724,687.20 and 430,809.60 is: 646,329.99
Step by Step Solution
- Step 1: Write the proportion equation
483,038.40 : 724,687.20 = 430,809.60 : x - Step 2: Convert to fraction form
483,038.40/724,687.20 = 430,809.60/x - Step 3: Cross multiply
483,038.40x = 724,687.20 × 430,809.60 - Step 4: Simplify right side
483,038.40x = 312,202,202,757.12 - Step 5: Solve for x
x = 312,202,202,757.12/483,038.40 - Step 6: Final answer
x = 646,329.99
Related Problems
Find fourth proportional to 241,519.20, 362,343.60 and 215,404.80
Half scale
Find fourth proportional to 966,076.80, 1,449,374.40 and 861,619.20
Double scale
Find fourth proportional to 483,039.40, 724,688.70 and 430,810.60
Similar ratio
Find fourth proportional to 724,557.60, 1,087,030.80 and 646,214.40
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.