Finding the Fourth Proportional to 496,503.18, 685,154.21 and 281,638.63
Calculator
Solution
The fourth proportional to 496,503.18, 685,154.21 and 281,638.63 is: 388,649.86
Step by Step Solution
- Step 1: Write the proportion equation
496,503.18 : 685,154.21 = 281,638.63 : x - Step 2: Convert to fraction form
496,503.18/685,154.21 = 281,638.63/x - Step 3: Cross multiply
496,503.18x = 685,154.21 × 281,638.63 - Step 4: Simplify right side
496,503.18x = 192,965,889,922.05 - Step 5: Solve for x
x = 192,965,889,922.05/496,503.18 - Step 6: Final answer
x = 388,649.86
Related Problems
Find fourth proportional to 248,251.59, 342,577.10 and 140,819.31
Half scale
Find fourth proportional to 993,006.35, 1,370,308.41 and 563,277.26
Double scale
Find fourth proportional to 496,504.18, 685,155.58 and 281,639.63
Similar ratio
Find fourth proportional to 744,754.76, 1,027,731.31 and 422,457.94
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.