Finding the Fourth Proportional to 726,112.96, 1,089,286.08 and 305,509.12
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Solution
The fourth proportional to 726,112.96, 1,089,286.08 and 305,509.12 is: 458,312.76
Step by Step Solution
- Step 1: Write the proportion equation
726,112.96 : 1,089,286.08 = 305,509.12 : x - Step 2: Convert to fraction form
726,112.96/1,089,286.08 = 305,509.12/x - Step 3: Cross multiply
726,112.96x = 1,089,286.08 × 305,509.12 - Step 4: Simplify right side
726,112.96x = 332,786,831,729.05 - Step 5: Solve for x
x = 332,786,831,729.05/726,112.96 - Step 6: Final answer
x = 458,312.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.