Finding the Third Proportional to 534 and 780.50
Calculator
Solution
The third proportional to 534 and 780.50 is: 1,140.79
Step by Step Solution
- Step 1: Write the proportion equation
534 : 780.50 = 780.50 : x - Step 2: Convert to fraction form
534/780.50 = 780.50/x - Step 3: Cross multiply
534x = 780.50 × 780.50 - Step 4: Simplify right side
534x = 609,180.25 - Step 5: Solve for x
x = 609,180.25/534 - Step 6: Final answer
x = 1,140.79
Related Problems
Find third proportional to 267 and 390.25
Half scale
Find third proportional to 1,068 and 1,561
Double scale
Find third proportional to 536 and 783
Similar ratio
Find third proportional to 801 and 1,170.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.