Finding the Fourth Proportional to 434,979.88, 601,456.26 and 378,992.68
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Solution
The fourth proportional to 434,979.88, 601,456.26 and 378,992.68 is: 524,041.53
Step by Step Solution
- Step 1: Write the proportion equation
434,979.88 : 601,456.26 = 378,992.68 : x - Step 2: Convert to fraction form
434,979.88/601,456.26 = 378,992.68/x - Step 3: Cross multiply
434,979.88x = 601,456.26 × 378,992.68 - Step 4: Simplify right side
434,979.88x = 227,947,519,880.18 - Step 5: Solve for x
x = 227,947,519,880.18/434,979.88 - Step 6: Final answer
x = 524,041.53
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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.