Finding the Fourth Proportional to 734,936.85, 1,012,112.91 and 661,716.09
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Solution
The fourth proportional to 734,936.85, 1,012,112.91 and 661,716.09 is: 911,277.48
Step by Step Solution
- Step 1: Write the proportion equation
734,936.85 : 1,012,112.91 = 661,716.09 : x - Step 2: Convert to fraction form
734,936.85/1,012,112.91 = 661,716.09/x - Step 3: Cross multiply
734,936.85x = 1,012,112.91 × 661,716.09 - Step 4: Simplify right side
734,936.85x = 669,731,397,443.72 - Step 5: Solve for x
x = 669,731,397,443.72/734,936.85 - Step 6: Final answer
x = 911,277.48
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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.