Finding the Fourth Proportional to 641,336.93, 885,007.99 and 354,839.93
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Solution
The fourth proportional to 641,336.93, 885,007.99 and 354,839.93 is: 489,658.65
Step by Step Solution
- Step 1: Write the proportion equation
641,336.93 : 885,007.99 = 354,839.93 : x - Step 2: Convert to fraction form
641,336.93/885,007.99 = 354,839.93/x - Step 3: Cross multiply
641,336.93x = 885,007.99 × 354,839.93 - Step 4: Simplify right side
641,336.93x = 314,036,173,221.04 - Step 5: Solve for x
x = 314,036,173,221.04/641,336.93 - Step 6: Final answer
x = 489,658.65
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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.