Finding the Fourth Proportional to 707.16, 976 and 412.46
Calculator
Solution
The fourth proportional to 707.16, 976 and 412.46 is: 569.26
Step by Step Solution
- Step 1: Write the proportion equation
707.16 : 976 = 412.46 : x - Step 2: Convert to fraction form
707.16/976 = 412.46/x - Step 3: Cross multiply
707.16x = 976 × 412.46 - Step 4: Simplify right side
707.16x = 402,560.96 - Step 5: Solve for x
x = 402,560.96/707.16 - Step 6: Final answer
x = 569.26
Related Problems
Find fourth proportional to 353.58, 488 and 206.23
Half scale
Find fourth proportional to 1,414.32, 1,952 and 824.92
Double scale
Find fourth proportional to 708.16, 977.38 and 413.46
Similar ratio
Find fourth proportional to 1,060.74, 1,464 and 618.69
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.