Finding the Fourth Proportional to 465,709.80, 698,564.70 and 128,749.80
Calculator
Solution
The fourth proportional to 465,709.80, 698,564.70 and 128,749.80 is: 193,124.70
Step by Step Solution
- Step 1: Write the proportion equation
465,709.80 : 698,564.70 = 128,749.80 : x - Step 2: Convert to fraction form
465,709.80/698,564.70 = 128,749.80/x - Step 3: Cross multiply
465,709.80x = 698,564.70 × 128,749.80 - Step 4: Simplify right side
465,709.80x = 89,940,065,412.06 - Step 5: Solve for x
x = 89,940,065,412.06/465,709.80 - Step 6: Final answer
x = 193,124.70
Related Problems
Find fourth proportional to 232,854.90, 349,282.35 and 64,374.90
Half scale
Find fourth proportional to 931,419.60, 1,397,129.40 and 257,499.60
Double scale
Find fourth proportional to 465,710.80, 698,566.20 and 128,750.80
Similar ratio
Find fourth proportional to 698,564.70, 1,047,847.05 and 193,124.70
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.