Finding the Third Proportional to 286,276 and 420,662
Calculator
Solution
The third proportional to 286,276 and 420,662 is: 618,132.57
Step by Step Solution
- Step 1: Write the proportion equation
286,276 : 420,662 = 420,662 : x - Step 2: Convert to fraction form
286,276/420,662 = 420,662/x - Step 3: Cross multiply
286,276x = 420,662 × 420,662 - Step 4: Simplify right side
286,276x = 176,956,518,244 - Step 5: Solve for x
x = 176,956,518,244/286,276 - Step 6: Final answer
x = 618,132.57
Related Problems
Find third proportional to 143,138 and 210,331
Half scale
Find third proportional to 572,552 and 841,324
Double scale
Find third proportional to 286,278 and 420,665
Similar ratio
Find third proportional to 429,414 and 630,993
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.