Finding the Fourth Proportional to 1,261,604.07, 1,740,998.34 and 717,738.66
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Solution
The fourth proportional to 1,261,604.07, 1,740,998.34 and 717,738.66 is: 990,470.66
Step by Step Solution
- Step 1: Write the proportion equation
1,261,604.07 : 1,740,998.34 = 717,738.66 : x - Step 2: Convert to fraction form
1,261,604.07/1,740,998.34 = 717,738.66/x - Step 3: Cross multiply
1,261,604.07x = 1,740,998.34 × 717,738.66 - Step 4: Simplify right side
1,261,604.07x = 1,249,581,815,613.82 - Step 5: Solve for x
x = 1,249,581,815,613.82/1,261,604.07 - Step 6: Final answer
x = 990,470.66
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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.