Finding the Fourth Proportional to 755,735.49, 1,042,876.49 and 416,138.13
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Solution
The fourth proportional to 755,735.49, 1,042,876.49 and 416,138.13 is: 574,249.42
Step by Step Solution
- Step 1: Write the proportion equation
755,735.49 : 1,042,876.49 = 416,138.13 : x - Step 2: Convert to fraction form
755,735.49/1,042,876.49 = 416,138.13/x - Step 3: Cross multiply
755,735.49x = 1,042,876.49 × 416,138.13 - Step 4: Simplify right side
755,735.49x = 433,980,670,288.87 - Step 5: Solve for x
x = 433,980,670,288.87/755,735.49 - Step 6: Final answer
x = 574,249.42
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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.