Finding the Fourth Proportional to 1,263,691.72, 1,743,888.18 and 690,764.68
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Solution
The fourth proportional to 1,263,691.72, 1,743,888.18 and 690,764.68 is: 953,251.76
Step by Step Solution
- Step 1: Write the proportion equation
1,263,691.72 : 1,743,888.18 = 690,764.68 : x - Step 2: Convert to fraction form
1,263,691.72/1,743,888.18 = 690,764.68/x - Step 3: Cross multiply
1,263,691.72x = 1,743,888.18 × 690,764.68 - Step 4: Simplify right side
1,263,691.72x = 1,204,616,360,613.48 - Step 5: Solve for x
x = 1,204,616,360,613.48/1,263,691.72 - Step 6: Final answer
x = 953,251.76
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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.