Finding the Fourth Proportional to 911,548.80, 1,366,229.70 and 378,795.60
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Solution
The fourth proportional to 911,548.80, 1,366,229.70 and 378,795.60 is: 567,738.99
Step by Step Solution
- Step 1: Write the proportion equation
911,548.80 : 1,366,229.70 = 378,795.60 : x - Step 2: Convert to fraction form
911,548.80/1,366,229.70 = 378,795.60/x - Step 3: Cross multiply
911,548.80x = 1,366,229.70 × 378,795.60 - Step 4: Simplify right side
911,548.80x = 517,521,798,949.32 - Step 5: Solve for x
x = 517,521,798,949.32/911,548.80 - Step 6: Final answer
x = 567,738.99
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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.