Finding the Fourth Proportional to 919,487.10, 1,268,742.67 and 511,578.46
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Solution
The fourth proportional to 919,487.10, 1,268,742.67 and 511,578.46 is: 705,895.08
Step by Step Solution
- Step 1: Write the proportion equation
919,487.10 : 1,268,742.67 = 511,578.46 : x - Step 2: Convert to fraction form
919,487.10/1,268,742.67 = 511,578.46/x - Step 3: Cross multiply
919,487.10x = 1,268,742.67 × 511,578.46 - Step 4: Simplify right side
919,487.10x = 649,061,414,911.18 - Step 5: Solve for x
x = 649,061,414,911.18/919,487.10 - Step 6: Final answer
x = 705,895.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.