Finding the Fourth Proportional to 681,838.93, 939,959.69 and 536,391.92
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Solution
The fourth proportional to 681,838.93, 939,959.69 and 536,391.92 is: 739,451.44
Step by Step Solution
- Step 1: Write the proportion equation
681,838.93 : 939,959.69 = 536,391.92 : x - Step 2: Convert to fraction form
681,838.93/939,959.69 = 536,391.92/x - Step 3: Cross multiply
681,838.93x = 939,959.69 × 536,391.92 - Step 4: Simplify right side
681,838.93x = 504,186,778,984.80 - Step 5: Solve for x
x = 504,186,778,984.80/681,838.93 - Step 6: Final answer
x = 739,451.44
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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.