Finding the Fourth Proportional to 681,695.16, 1,022,545.26 and 208,378.68
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Solution
The fourth proportional to 681,695.16, 1,022,545.26 and 208,378.68 is: 312,568.79
Step by Step Solution
- Step 1: Write the proportion equation
681,695.16 : 1,022,545.26 = 208,378.68 : x - Step 2: Convert to fraction form
681,695.16/1,022,545.26 = 208,378.68/x - Step 3: Cross multiply
681,695.16x = 1,022,545.26 × 208,378.68 - Step 4: Simplify right side
681,695.16x = 213,076,631,519.06 - Step 5: Solve for x
x = 213,076,631,519.06/681,695.16 - Step 6: Final answer
x = 312,568.79
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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.