Finding the Fourth Proportional to 919,072.08, 1,268,297.28 and 511,172.70
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Solution
The fourth proportional to 919,072.08, 1,268,297.28 and 511,172.70 is: 705,405.98
Step by Step Solution
- Step 1: Write the proportion equation
919,072.08 : 1,268,297.28 = 511,172.70 : x - Step 2: Convert to fraction form
919,072.08/1,268,297.28 = 511,172.70/x - Step 3: Cross multiply
919,072.08x = 1,268,297.28 × 511,172.70 - Step 4: Simplify right side
919,072.08x = 648,318,945,020.26 - Step 5: Solve for x
x = 648,318,945,020.26/919,072.08 - Step 6: Final answer
x = 705,405.98
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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.