Finding the Fourth Proportional to 812,463.60, 1,121,186.04 and 449,879.68
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Solution
The fourth proportional to 812,463.60, 1,121,186.04 and 449,879.68 is: 620,826.35
Step by Step Solution
- Step 1: Write the proportion equation
812,463.60 : 1,121,186.04 = 449,879.68 : x - Step 2: Convert to fraction form
812,463.60/1,121,186.04 = 449,879.68/x - Step 3: Cross multiply
812,463.60x = 1,121,186.04 × 449,879.68 - Step 4: Simplify right side
812,463.60x = 504,398,816,610.10 - Step 5: Solve for x
x = 504,398,816,610.10/812,463.60 - Step 6: Final answer
x = 620,826.35
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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.