Finding the Fourth Proportional to 836,163.20, 1,153,909.68 and 454,193.12
Calculator
Solution
The fourth proportional to 836,163.20, 1,153,909.68 and 454,193.12 is: 626,788.93
Step by Step Solution
- Step 1: Write the proportion equation
836,163.20 : 1,153,909.68 = 454,193.12 : x - Step 2: Convert to fraction form
836,163.20/1,153,909.68 = 454,193.12/x - Step 3: Cross multiply
836,163.20x = 1,153,909.68 × 454,193.12 - Step 4: Simplify right side
836,163.20x = 524,097,837,757.40 - Step 5: Solve for x
x = 524,097,837,757.40/836,163.20 - Step 6: Final answer
x = 626,788.93
Related Problems
Find fourth proportional to 418,081.60, 576,954.84 and 227,096.56
Half scale
Find fourth proportional to 1,672,326.40, 2,307,819.36 and 908,386.24
Double scale
Find fourth proportional to 836,164.20, 1,153,911.06 and 454,194.12
Similar ratio
Find fourth proportional to 1,254,244.80, 1,730,864.52 and 681,289.68
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.