Finding the Fourth Proportional to 1,330,135.80, 1,995,203.70 and 531,540.60
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Solution
The fourth proportional to 1,330,135.80, 1,995,203.70 and 531,540.60 is: 797,310.90
Step by Step Solution
- Step 1: Write the proportion equation
1,330,135.80 : 1,995,203.70 = 531,540.60 : x - Step 2: Convert to fraction form
1,330,135.80/1,995,203.70 = 531,540.60/x - Step 3: Cross multiply
1,330,135.80x = 1,995,203.70 × 531,540.60 - Step 4: Simplify right side
1,330,135.80x = 1,060,531,771,820.22 - Step 5: Solve for x
x = 1,060,531,771,820.22/1,330,135.80 - Step 6: Final answer
x = 797,310.90
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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.