Finding the Fourth Proportional to 608,849.87, 909,541.41 and 438,919.97
Calculator
Solution
The fourth proportional to 608,849.87, 909,541.41 and 438,919.97 is: 655,688.55
Step by Step Solution
- Step 1: Write the proportion equation
608,849.87 : 909,541.41 = 438,919.97 : x - Step 2: Convert to fraction form
608,849.87/909,541.41 = 438,919.97/x - Step 3: Cross multiply
608,849.87x = 909,541.41 × 438,919.97 - Step 4: Simplify right side
608,849.87x = 399,215,882,197.30 - Step 5: Solve for x
x = 399,215,882,197.30/608,849.87 - Step 6: Final answer
x = 655,688.55
Related Problems
Find fourth proportional to 304,424.93, 454,770.70 and 219,459.98
Half scale
Find fourth proportional to 1,217,699.73, 1,819,082.81 and 877,839.93
Double scale
Find fourth proportional to 608,850.87, 909,542.90 and 438,920.97
Similar ratio
Find fourth proportional to 913,274.80, 1,364,312.11 and 658,379.95
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.