Finding the Fourth Proportional to 715,876.97, 987,884.99 and 393,584.59
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Solution
The fourth proportional to 715,876.97, 987,884.99 and 393,584.59 is: 543,132.86
Step by Step Solution
- Step 1: Write the proportion equation
715,876.97 : 987,884.99 = 393,584.59 : x - Step 2: Convert to fraction form
715,876.97/987,884.99 = 393,584.59/x - Step 3: Cross multiply
715,876.97x = 987,884.99 × 393,584.59 - Step 4: Simplify right side
715,876.97x = 388,816,311,170.65 - Step 5: Solve for x
x = 388,816,311,170.65/715,876.97 - Step 6: Final answer
x = 543,132.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.