Finding the Fourth Proportional to 662,286.60, 913,965.07 and 371,960.99
Calculator
Solution
The fourth proportional to 662,286.60, 913,965.07 and 371,960.99 is: 513,311.53
Step by Step Solution
- Step 1: Write the proportion equation
662,286.60 : 913,965.07 = 371,960.99 : x - Step 2: Convert to fraction form
662,286.60/913,965.07 = 371,960.99/x - Step 3: Cross multiply
662,286.60x = 913,965.07 × 371,960.99 - Step 4: Simplify right side
662,286.60x = 339,959,348,317.16 - Step 5: Solve for x
x = 339,959,348,317.16/662,286.60 - Step 6: Final answer
x = 513,311.53
Related Problems
Find fourth proportional to 331,143.30, 456,982.53 and 185,980.49
Half scale
Find fourth proportional to 1,324,573.21, 1,827,930.14 and 743,921.97
Double scale
Find fourth proportional to 662,287.60, 913,966.45 and 371,961.99
Similar ratio
Find fourth proportional to 993,429.90, 1,370,947.60 and 557,941.48
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.