Finding the Fourth Proportional to 919,487.60, 1,268,743.36 and 511,578.96
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Solution
The fourth proportional to 919,487.60, 1,268,743.36 and 511,578.96 is: 705,895.77
Step by Step Solution
- Step 1: Write the proportion equation
919,487.60 : 1,268,743.36 = 511,578.96 : x - Step 2: Convert to fraction form
919,487.60/1,268,743.36 = 511,578.96/x - Step 3: Cross multiply
919,487.60x = 1,268,743.36 × 511,578.96 - Step 4: Simplify right side
919,487.60x = 649,062,408,615.71 - Step 5: Solve for x
x = 649,062,408,615.71/919,487.60 - Step 6: Final answer
x = 705,895.77
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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.