Finding the Third Proportional to 425,742.75 and 640,392.75
Calculator
Solution
The third proportional to 425,742.75 and 640,392.75 is: 963,264.49
Step by Step Solution
- Step 1: Write the proportion equation
425,742.75 : 640,392.75 = 640,392.75 : x - Step 2: Convert to fraction form
425,742.75/640,392.75 = 640,392.75/x - Step 3: Cross multiply
425,742.75x = 640,392.75 × 640,392.75 - Step 4: Simplify right side
425,742.75x = 410,102,874,252.56 - Step 5: Solve for x
x = 410,102,874,252.56/425,742.75 - Step 6: Final answer
x = 963,264.49
Related Problems
Find third proportional to 212,871.38 and 320,196.38
Half scale
Find third proportional to 851,485.50 and 1,280,785.50
Double scale
Find third proportional to 425,745 and 640,396
Similar ratio
Find third proportional to 638,614.13 and 960,589.13
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.