Finding the Fourth Proportional to 801,067.56, 1,105,375.44 and 638,138.99
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Solution
The fourth proportional to 801,067.56, 1,105,375.44 and 638,138.99 is: 880,553.91
Step by Step Solution
- Step 1: Write the proportion equation
801,067.56 : 1,105,375.44 = 638,138.99 : x - Step 2: Convert to fraction form
801,067.56/1,105,375.44 = 638,138.99/x - Step 3: Cross multiply
801,067.56x = 1,105,375.44 × 638,138.99 - Step 4: Simplify right side
801,067.56x = 705,383,172,008.87 - Step 5: Solve for x
x = 705,383,172,008.87/801,067.56 - Step 6: Final answer
x = 880,553.91
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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.