Finding the Fourth Proportional to 1,261,687.90, 1,741,106.91 and 717,811.99
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Solution
The fourth proportional to 1,261,687.90, 1,741,106.91 and 717,811.99 is: 990,567.81
Step by Step Solution
- Step 1: Write the proportion equation
1,261,687.90 : 1,741,106.91 = 717,811.99 : x - Step 2: Convert to fraction form
1,261,687.90/1,741,106.91 = 717,811.99/x - Step 3: Cross multiply
1,261,687.90x = 1,741,106.91 × 717,811.99 - Step 4: Simplify right side
1,261,687.90x = 1,249,787,415,869.85 - Step 5: Solve for x
x = 1,249,787,415,869.85/1,261,687.90 - Step 6: Final answer
x = 990,567.81
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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.