Finding the Fourth Proportional to 748,639.92, 1,033,145.64 and 409,113.84
Calculator
Solution
The fourth proportional to 748,639.92, 1,033,145.64 and 409,113.84 is: 564,589.42
Step by Step Solution
- Step 1: Write the proportion equation
748,639.92 : 1,033,145.64 = 409,113.84 : x - Step 2: Convert to fraction form
748,639.92/1,033,145.64 = 409,113.84/x - Step 3: Cross multiply
748,639.92x = 1,033,145.64 × 409,113.84 - Step 4: Simplify right side
748,639.92x = 422,674,180,059.66 - Step 5: Solve for x
x = 422,674,180,059.66/748,639.92 - Step 6: Final answer
x = 564,589.42
Related Problems
Find fourth proportional to 374,319.96, 516,572.82 and 204,556.92
Half scale
Find fourth proportional to 1,497,279.84, 2,066,291.28 and 818,227.68
Double scale
Find fourth proportional to 748,640.92, 1,033,147.02 and 409,114.84
Similar ratio
Find fourth proportional to 1,122,959.88, 1,549,718.46 and 613,670.76
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.