Finding the Fourth Proportional to 485,037.80, 727,556.70 and 366,939.80
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Solution
The fourth proportional to 485,037.80, 727,556.70 and 366,939.80 is: 550,409.70
Step by Step Solution
- Step 1: Write the proportion equation
485,037.80 : 727,556.70 = 366,939.80 : x - Step 2: Convert to fraction form
485,037.80/727,556.70 = 366,939.80/x - Step 3: Cross multiply
485,037.80x = 727,556.70 × 366,939.80 - Step 4: Simplify right side
485,037.80x = 266,969,509,986.66 - Step 5: Solve for x
x = 266,969,509,986.66/485,037.80 - Step 6: Final answer
x = 550,409.70
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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.