Finding the Fourth Proportional to 800,788.26, 1,105,087.68 and 438,212.02
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Solution
The fourth proportional to 800,788.26, 1,105,087.68 and 438,212.02 is: 604,732.52
Step by Step Solution
- Step 1: Write the proportion equation
800,788.26 : 1,105,087.68 = 438,212.02 : x - Step 2: Convert to fraction form
800,788.26/1,105,087.68 = 438,212.02/x - Step 3: Cross multiply
800,788.26x = 1,105,087.68 × 438,212.02 - Step 4: Simplify right side
800,788.26x = 484,262,701,767.19 - Step 5: Solve for x
x = 484,262,701,767.19/800,788.26 - Step 6: Final answer
x = 604,732.52
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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.