Finding the Fourth Proportional to 564,884.60, 779,546.88 and 310,235.78
Calculator
Solution
The fourth proportional to 564,884.60, 779,546.88 and 310,235.78 is: 428,128.75
Step by Step Solution
- Step 1: Write the proportion equation
564,884.60 : 779,546.88 = 310,235.78 : x - Step 2: Convert to fraction form
564,884.60/779,546.88 = 310,235.78/x - Step 3: Cross multiply
564,884.60x = 779,546.88 × 310,235.78 - Step 4: Simplify right side
564,884.60x = 241,843,336,312.23 - Step 5: Solve for x
x = 241,843,336,312.23/564,884.60 - Step 6: Final answer
x = 428,128.75
Related Problems
Find fourth proportional to 282,442.30, 389,773.44 and 155,117.89
Half scale
Find fourth proportional to 1,129,769.19, 1,559,093.76 and 620,471.57
Double scale
Find fourth proportional to 564,885.60, 779,548.26 and 310,236.78
Similar ratio
Find fourth proportional to 847,326.89, 1,169,320.32 and 465,353.67
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.