Finding the Fourth Proportional to 741,990.11, 1,112,816.93 and 376,881.60
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Solution
The fourth proportional to 741,990.11, 1,112,816.93 and 376,881.60 is: 565,236.95
Step by Step Solution
- Step 1: Write the proportion equation
741,990.11 : 1,112,816.93 = 376,881.60 : x - Step 2: Convert to fraction form
741,990.11/1,112,816.93 = 376,881.60/x - Step 3: Cross multiply
741,990.11x = 1,112,816.93 × 376,881.60 - Step 4: Simplify right side
741,990.11x = 419,400,225,085.49 - Step 5: Solve for x
x = 419,400,225,085.49/741,990.11 - Step 6: Final answer
x = 565,236.95
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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.