Finding the Fourth Proportional to 727,211.20, 1,090,816.80 and 372,107.20
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Solution
The fourth proportional to 727,211.20, 1,090,816.80 and 372,107.20 is: 558,160.80
Step by Step Solution
- Step 1: Write the proportion equation
727,211.20 : 1,090,816.80 = 372,107.20 : x - Step 2: Convert to fraction form
727,211.20/1,090,816.80 = 372,107.20/x - Step 3: Cross multiply
727,211.20x = 1,090,816.80 × 372,107.20 - Step 4: Simplify right side
727,211.20x = 405,900,785,160.96 - Step 5: Solve for x
x = 405,900,785,160.96/727,211.20 - Step 6: Final answer
x = 558,160.80
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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.