Finding the Fourth Proportional to 726,607.08, 1,089,916.70 and 253,291.68
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Solution
The fourth proportional to 726,607.08, 1,089,916.70 and 253,291.68 is: 379,939.64
Step by Step Solution
- Step 1: Write the proportion equation
726,607.08 : 1,089,916.70 = 253,291.68 : x - Step 2: Convert to fraction form
726,607.08/1,089,916.70 = 253,291.68/x - Step 3: Cross multiply
726,607.08x = 1,089,916.70 × 253,291.68 - Step 4: Simplify right side
726,607.08x = 276,066,830,736.60 - Step 5: Solve for x
x = 276,066,830,736.60/726,607.08 - Step 6: Final answer
x = 379,939.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.