Finding the Fourth Proportional to 408,326.07, 612,613.74 and 208,786.62
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Solution
The fourth proportional to 408,326.07, 612,613.74 and 208,786.62 is: 313,243.66
Step by Step Solution
- Step 1: Write the proportion equation
408,326.07 : 612,613.74 = 208,786.62 : x - Step 2: Convert to fraction form
408,326.07/612,613.74 = 208,786.62/x - Step 3: Cross multiply
408,326.07x = 612,613.74 × 208,786.62 - Step 4: Simplify right side
408,326.07x = 127,905,552,140.16 - Step 5: Solve for x
x = 127,905,552,140.16/408,326.07 - Step 6: Final answer
x = 313,243.66
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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.