Finding the Fourth Proportional to 635,815.88, 878,202.16 and 475,382.42
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Solution
The fourth proportional to 635,815.88, 878,202.16 and 475,382.42 is: 656,608.12
Step by Step Solution
- Step 1: Write the proportion equation
635,815.88 : 878,202.16 = 475,382.42 : x - Step 2: Convert to fraction form
635,815.88/878,202.16 = 475,382.42/x - Step 3: Cross multiply
635,815.88x = 878,202.16 × 475,382.42 - Step 4: Simplify right side
635,815.88x = 417,481,868,070.03 - Step 5: Solve for x
x = 417,481,868,070.03/635,815.88 - Step 6: Final answer
x = 656,608.12
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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.