Finding the Fourth Proportional to 919,497.75, 1,268,913.24 and 511,616.79
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Solution
The fourth proportional to 919,497.75, 1,268,913.24 and 511,616.79 is: 706,034.70
Step by Step Solution
- Step 1: Write the proportion equation
919,497.75 : 1,268,913.24 = 511,616.79 : x - Step 2: Convert to fraction form
919,497.75/1,268,913.24 = 511,616.79/x - Step 3: Cross multiply
919,497.75x = 1,268,913.24 × 511,616.79 - Step 4: Simplify right side
919,497.75x = 649,197,318,637.30 - Step 5: Solve for x
x = 649,197,318,637.30/919,497.75 - Step 6: Final answer
x = 706,034.70
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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.