Finding the Fourth Proportional to 873,939.44, 1,206,058.74 and 491,979.62
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Solution
The fourth proportional to 873,939.44, 1,206,058.74 and 491,979.62 is: 678,944.44
Step by Step Solution
- Step 1: Write the proportion equation
873,939.44 : 1,206,058.74 = 491,979.62 : x - Step 2: Convert to fraction form
873,939.44/1,206,058.74 = 491,979.62/x - Step 3: Cross multiply
873,939.44x = 1,206,058.74 × 491,979.62 - Step 4: Simplify right side
873,939.44x = 593,356,320,602.88 - Step 5: Solve for x
x = 593,356,320,602.88/873,939.44 - Step 6: Final answer
x = 678,944.44
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1.5x scale
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.