Finding the Fourth Proportional to 741,989.36, 1,112,815.81 and 376,880.85
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Solution
The fourth proportional to 741,989.36, 1,112,815.81 and 376,880.85 is: 565,235.82
Step by Step Solution
- Step 1: Write the proportion equation
741,989.36 : 1,112,815.81 = 376,880.85 : x - Step 2: Convert to fraction form
741,989.36/1,112,815.81 = 376,880.85/x - Step 3: Cross multiply
741,989.36x = 1,112,815.81 × 376,880.85 - Step 4: Simplify right side
741,989.36x = 419,398,960,917.76 - Step 5: Solve for x
x = 419,398,960,917.76/741,989.36 - Step 6: Final answer
x = 565,235.82
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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.