Finding the Fourth Proportional to 3,915,434.70, 5,868,486.45 and 1,640,954.70
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Solution
The fourth proportional to 3,915,434.70, 5,868,486.45 and 1,640,954.70 is: 2,459,476.70
Step by Step Solution
- Step 1: Write the proportion equation
3,915,434.70 : 5,868,486.45 = 1,640,954.70 : x - Step 2: Convert to fraction form
3,915,434.70/5,868,486.45 = 1,640,954.70/x - Step 3: Cross multiply
3,915,434.70x = 5,868,486.45 × 1,640,954.70 - Step 4: Simplify right side
3,915,434.70x = 9,629,920,422,013.82 - Step 5: Solve for x
x = 9,629,920,422,013.82/3,915,434.70 - Step 6: Final answer
x = 2,459,476.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.