Finding the Fourth Proportional to 453,539.40, 680,309.10 and 311,821.80
Calculator
Solution
The fourth proportional to 453,539.40, 680,309.10 and 311,821.80 is: 467,732.70
Step by Step Solution
- Step 1: Write the proportion equation
453,539.40 : 680,309.10 = 311,821.80 : x - Step 2: Convert to fraction form
453,539.40/680,309.10 = 311,821.80/x - Step 3: Cross multiply
453,539.40x = 680,309.10 × 311,821.80 - Step 4: Simplify right side
453,539.40x = 212,135,208,118.38 - Step 5: Solve for x
x = 212,135,208,118.38/453,539.40 - Step 6: Final answer
x = 467,732.70
Related Problems
Find fourth proportional to 226,769.70, 340,154.55 and 155,910.90
Half scale
Find fourth proportional to 907,078.80, 1,360,618.20 and 623,643.60
Double scale
Find fourth proportional to 453,540.40, 680,310.60 and 311,822.80
Similar ratio
Find fourth proportional to 680,309.10, 1,020,463.65 and 467,732.70
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.