Finding the Fourth Proportional to 1,040,161.20, 1,560,241.80 and 292,207.20
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Solution
The fourth proportional to 1,040,161.20, 1,560,241.80 and 292,207.20 is: 438,310.80
Step by Step Solution
- Step 1: Write the proportion equation
1,040,161.20 : 1,560,241.80 = 292,207.20 : x - Step 2: Convert to fraction form
1,040,161.20/1,560,241.80 = 292,207.20/x - Step 3: Cross multiply
1,040,161.20x = 1,560,241.80 × 292,207.20 - Step 4: Simplify right side
1,040,161.20x = 455,913,887,700.96 - Step 5: Solve for x
x = 455,913,887,700.96/1,040,161.20 - Step 6: Final answer
x = 438,310.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.