Finding the Fourth Proportional to 1,131,587.97, 1,561,543.83 and 641,590.44
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Solution
The fourth proportional to 1,131,587.97, 1,561,543.83 and 641,590.44 is: 885,367.84
Step by Step Solution
- Step 1: Write the proportion equation
1,131,587.97 : 1,561,543.83 = 641,590.44 : x - Step 2: Convert to fraction form
1,131,587.97/1,561,543.83 = 641,590.44/x - Step 3: Cross multiply
1,131,587.97x = 1,561,543.83 × 641,590.44 - Step 4: Simplify right side
1,131,587.97x = 1,001,871,592,968.99 - Step 5: Solve for x
x = 1,001,871,592,968.99/1,131,587.97 - Step 6: Final answer
x = 885,367.84
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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.