Finding the Fourth Proportional to 816,979.50, 1,225,478.15 and 248,453.05
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Solution
The fourth proportional to 816,979.50, 1,225,478.15 and 248,453.05 is: 372,682.28
Step by Step Solution
- Step 1: Write the proportion equation
816,979.50 : 1,225,478.15 = 248,453.05 : x - Step 2: Convert to fraction form
816,979.50/1,225,478.15 = 248,453.05/x - Step 3: Cross multiply
816,979.50x = 1,225,478.15 × 248,453.05 - Step 4: Simplify right side
816,979.50x = 304,473,784,075.86 - Step 5: Solve for x
x = 304,473,784,075.86/816,979.50 - Step 6: Final answer
x = 372,682.28
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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.