Finding the Fourth Proportional to 911,285.80, 1,366,928.70 and 378,629.80
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Solution
The fourth proportional to 911,285.80, 1,366,928.70 and 378,629.80 is: 567,944.70
Step by Step Solution
- Step 1: Write the proportion equation
911,285.80 : 1,366,928.70 = 378,629.80 : x - Step 2: Convert to fraction form
911,285.80/1,366,928.70 = 378,629.80/x - Step 3: Cross multiply
911,285.80x = 1,366,928.70 × 378,629.80 - Step 4: Simplify right side
911,285.80x = 517,559,940,295.26 - Step 5: Solve for x
x = 517,559,940,295.26/911,285.80 - Step 6: Final answer
x = 567,944.70
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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.