Finding the Fourth Proportional to 3,446,385.80, 4,755,884.10 and 1,918,460.12
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Solution
The fourth proportional to 3,446,385.80, 4,755,884.10 and 1,918,460.12 is: 2,647,403.54
Step by Step Solution
- Step 1: Write the proportion equation
3,446,385.80 : 4,755,884.10 = 1,918,460.12 : x - Step 2: Convert to fraction form
3,446,385.80/4,755,884.10 = 1,918,460.12/x - Step 3: Cross multiply
3,446,385.80x = 4,755,884.10 × 1,918,460.12 - Step 4: Simplify right side
3,446,385.80x = 9,123,973,981,192.09 - Step 5: Solve for x
x = 9,123,973,981,192.09/3,446,385.80 - Step 6: Final answer
x = 2,647,403.54
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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.