Finding the Fourth Proportional to 3,205,816.21, 4,423,893.51 and 1,755,486.66
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Solution
The fourth proportional to 3,205,816.21, 4,423,893.51 and 1,755,486.66 is: 2,422,498.84
Step by Step Solution
- Step 1: Write the proportion equation
3,205,816.21 : 4,423,893.51 = 1,755,486.66 : x - Step 2: Convert to fraction form
3,205,816.21/4,423,893.51 = 1,755,486.66/x - Step 3: Cross multiply
3,205,816.21x = 4,423,893.51 × 1,755,486.66 - Step 4: Simplify right side
3,205,816.21x = 7,766,086,065,238.25 - Step 5: Solve for x
x = 7,766,086,065,238.25/3,205,816.21 - Step 6: Final answer
x = 2,422,498.84
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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.