Finding the Fourth Proportional to 726,491.48, 1,089,903.06 and 221,124.08
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Solution
The fourth proportional to 726,491.48, 1,089,903.06 and 221,124.08 is: 331,736.59
Step by Step Solution
- Step 1: Write the proportion equation
726,491.48 : 1,089,903.06 = 221,124.08 : x - Step 2: Convert to fraction form
726,491.48/1,089,903.06 = 221,124.08/x - Step 3: Cross multiply
726,491.48x = 1,089,903.06 × 221,124.08 - Step 4: Simplify right side
726,491.48x = 241,003,805,982.17 - Step 5: Solve for x
x = 241,003,805,982.17/726,491.48 - Step 6: Final answer
x = 331,736.59
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1.5x scale
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.