Finding the Fourth Proportional to 931,536.80, 1,397,305.20 and 340,791.20
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Solution
The fourth proportional to 931,536.80, 1,397,305.20 and 340,791.20 is: 511,186.80
Step by Step Solution
- Step 1: Write the proportion equation
931,536.80 : 1,397,305.20 = 340,791.20 : x - Step 2: Convert to fraction form
931,536.80/1,397,305.20 = 340,791.20/x - Step 3: Cross multiply
931,536.80x = 1,397,305.20 × 340,791.20 - Step 4: Simplify right side
931,536.80x = 476,189,315,874.24 - Step 5: Solve for x
x = 476,189,315,874.24/931,536.80 - Step 6: Final answer
x = 511,186.80
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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.