Finding the Fourth Proportional to 996,758.70, 1,495,138.05 and 856,790.70
Calculator
Solution
The fourth proportional to 996,758.70, 1,495,138.05 and 856,790.70 is: 1,285,186.05
Step by Step Solution
- Step 1: Write the proportion equation
996,758.70 : 1,495,138.05 = 856,790.70 : x - Step 2: Convert to fraction form
996,758.70/1,495,138.05 = 856,790.70/x - Step 3: Cross multiply
996,758.70x = 1,495,138.05 × 856,790.70 - Step 4: Simplify right side
996,758.70x = 1,281,020,376,456.14 - Step 5: Solve for x
x = 1,281,020,376,456.14/996,758.70 - Step 6: Final answer
x = 1,285,186.05
Related Problems
Find fourth proportional to 498,379.35, 747,569.03 and 428,395.35
Half scale
Find fourth proportional to 1,993,517.40, 2,990,276.10 and 1,713,581.40
Double scale
Find fourth proportional to 996,759.70, 1,495,139.55 and 856,791.70
Similar ratio
Find fourth proportional to 1,495,138.05, 2,242,707.08 and 1,285,186.05
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.