Finding the Fourth Proportional to 919,586.26, 1,268,994.36 and 511,703.38
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Solution
The fourth proportional to 919,586.26, 1,268,994.36 and 511,703.38 is: 706,131.37
Step by Step Solution
- Step 1: Write the proportion equation
919,586.26 : 1,268,994.36 = 511,703.38 : x - Step 2: Convert to fraction form
919,586.26/1,268,994.36 = 511,703.38/x - Step 3: Cross multiply
919,586.26x = 1,268,994.36 × 511,703.38 - Step 4: Simplify right side
919,586.26x = 649,348,703,212.94 - Step 5: Solve for x
x = 649,348,703,212.94/919,586.26 - Step 6: Final answer
x = 706,131.37
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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.