Finding the Fourth Proportional to 496,678.05, 685,395.45 and 281,813.49
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Solution
The fourth proportional to 496,678.05, 685,395.45 and 281,813.49 is: 388,891.12
Step by Step Solution
- Step 1: Write the proportion equation
496,678.05 : 685,395.45 = 281,813.49 : x - Step 2: Convert to fraction form
496,678.05/685,395.45 = 281,813.49/x - Step 3: Cross multiply
496,678.05x = 685,395.45 × 281,813.49 - Step 4: Simplify right side
496,678.05x = 193,153,683,794.62 - Step 5: Solve for x
x = 193,153,683,794.62/496,678.05 - Step 6: Final answer
x = 388,891.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.