Finding the Fourth Proportional to 726,497.48, 1,089,912.06 and 221,130.08
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Solution
The fourth proportional to 726,497.48, 1,089,912.06 and 221,130.08 is: 331,745.60
Step by Step Solution
- Step 1: Write the proportion equation
726,497.48 : 1,089,912.06 = 221,130.08 : x - Step 2: Convert to fraction form
726,497.48/1,089,912.06 = 221,130.08/x - Step 3: Cross multiply
726,497.48x = 1,089,912.06 × 221,130.08 - Step 4: Simplify right side
726,497.48x = 241,012,341,020.77 - Step 5: Solve for x
x = 241,012,341,020.77/726,497.48 - Step 6: Final answer
x = 331,745.60
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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.