Finding the Fourth Proportional to 820,310.18, 1,131,859.04 and 471,383.19
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Solution
The fourth proportional to 820,310.18, 1,131,859.04 and 471,383.19 is: 650,411.69
Step by Step Solution
- Step 1: Write the proportion equation
820,310.18 : 1,131,859.04 = 471,383.19 : x - Step 2: Convert to fraction form
820,310.18/1,131,859.04 = 471,383.19/x - Step 3: Cross multiply
820,310.18x = 1,131,859.04 × 471,383.19 - Step 4: Simplify right side
820,310.18x = 533,539,328,913.64 - Step 5: Solve for x
x = 533,539,328,913.64/820,310.18 - Step 6: Final answer
x = 650,411.69
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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.