Finding the Fourth Proportional to 579,207.40, 869,070.30 and 263,501.80
Calculator
Solution
The fourth proportional to 579,207.40, 869,070.30 and 263,501.80 is: 395,370.62
Step by Step Solution
- Step 1: Write the proportion equation
579,207.40 : 869,070.30 = 263,501.80 : x - Step 2: Convert to fraction form
579,207.40/869,070.30 = 263,501.80/x - Step 3: Cross multiply
579,207.40x = 869,070.30 × 263,501.80 - Step 4: Simplify right side
579,207.40x = 229,001,588,376.54 - Step 5: Solve for x
x = 229,001,588,376.54/579,207.40 - Step 6: Final answer
x = 395,370.62
Related Problems
Find fourth proportional to 289,603.70, 434,535.15 and 131,750.90
Half scale
Find fourth proportional to 1,158,414.80, 1,738,140.60 and 527,003.60
Double scale
Find fourth proportional to 579,208.40, 869,071.80 and 263,502.80
Similar ratio
Find fourth proportional to 868,811.10, 1,303,605.45 and 395,252.70
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.