Finding the Fourth Proportional to 797.58, 1,197.09 and 432.63
Calculator
Solution
The fourth proportional to 797.58, 1,197.09 and 432.63 is: 649.34
Step by Step Solution
- Step 1: Write the proportion equation
797.58 : 1,197.09 = 432.63 : x - Step 2: Convert to fraction form
797.58/1,197.09 = 432.63/x - Step 3: Cross multiply
797.58x = 1,197.09 × 432.63 - Step 4: Simplify right side
797.58x = 517,897.05 - Step 5: Solve for x
x = 517,897.05/797.58 - Step 6: Final answer
x = 649.34
Related Problems
Find fourth proportional to 398.79, 598.55 and 216.32
Half scale
Find fourth proportional to 1,595.16, 2,394.18 and 865.26
Double scale
Find fourth proportional to 798.58, 1,198.59 and 433.63
Similar ratio
Find fourth proportional to 1,196.37, 1,795.64 and 648.95
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.