Finding the Fourth Proportional to 1,320,207.75, 1,821,839.55 and 747,235.62
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Solution
The fourth proportional to 1,320,207.75, 1,821,839.55 and 747,235.62 is: 1,031,158.47
Step by Step Solution
- Step 1: Write the proportion equation
1,320,207.75 : 1,821,839.55 = 747,235.62 : x - Step 2: Convert to fraction form
1,320,207.75/1,821,839.55 = 747,235.62/x - Step 3: Cross multiply
1,320,207.75x = 1,821,839.55 × 747,235.62 - Step 4: Simplify right side
1,320,207.75x = 1,361,343,405,684.77 - Step 5: Solve for x
x = 1,361,343,405,684.77/1,320,207.75 - Step 6: Final answer
x = 1,031,158.47
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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.