Finding the Fourth Proportional to 919,148.75, 1,268,407.04 and 511,241.81
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Solution
The fourth proportional to 919,148.75, 1,268,407.04 and 511,241.81 is: 705,503.55
Step by Step Solution
- Step 1: Write the proportion equation
919,148.75 : 1,268,407.04 = 511,241.81 : x - Step 2: Convert to fraction form
919,148.75/1,268,407.04 = 511,241.81/x - Step 3: Cross multiply
919,148.75x = 1,268,407.04 × 511,241.81 - Step 4: Simplify right side
919,148.75x = 648,462,702,048.10 - Step 5: Solve for x
x = 648,462,702,048.10/919,148.75 - Step 6: Final answer
x = 705,503.55
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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.