Finding the Fourth Proportional to 726,513.63, 1,089,811.38 and 221,091.05
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Solution
The fourth proportional to 726,513.63, 1,089,811.38 and 221,091.05 is: 331,649.02
Step by Step Solution
- Step 1: Write the proportion equation
726,513.63 : 1,089,811.38 = 221,091.05 : x - Step 2: Convert to fraction form
726,513.63/1,089,811.38 = 221,091.05/x - Step 3: Cross multiply
726,513.63x = 1,089,811.38 × 221,091.05 - Step 4: Simplify right side
726,513.63x = 240,947,536,857.09 - Step 5: Solve for x
x = 240,947,536,857.09/726,513.63 - Step 6: Final answer
x = 331,649.02
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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.