Finding the Fourth Proportional to 801,107.75, 1,105,530.09 and 438,531.84
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Solution
The fourth proportional to 801,107.75, 1,105,530.09 and 438,531.84 is: 605,174.70
Step by Step Solution
- Step 1: Write the proportion equation
801,107.75 : 1,105,530.09 = 438,531.84 : x - Step 2: Convert to fraction form
801,107.75/1,105,530.09 = 438,531.84/x - Step 3: Cross multiply
801,107.75x = 1,105,530.09 × 438,531.84 - Step 4: Simplify right side
801,107.75x = 484,810,142,898.57 - Step 5: Solve for x
x = 484,810,142,898.57/801,107.75 - Step 6: Final answer
x = 605,174.70
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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.