Finding the Fourth Proportional to 724,126.26, 1,086,242.68 and 191,643.68
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Solution
The fourth proportional to 724,126.26, 1,086,242.68 and 191,643.68 is: 287,479.62
Step by Step Solution
- Step 1: Write the proportion equation
724,126.26 : 1,086,242.68 = 191,643.68 : x - Step 2: Convert to fraction form
724,126.26/1,086,242.68 = 191,643.68/x - Step 3: Cross multiply
724,126.26x = 1,086,242.68 × 191,643.68 - Step 4: Simplify right side
724,126.26x = 208,171,544,568.26 - Step 5: Solve for x
x = 208,171,544,568.26/724,126.26 - Step 6: Final answer
x = 287,479.62
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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.