Finding the Fourth Proportional to 1,986,074.19, 2,740,701.67 and 1,126,615.99
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Solution
The fourth proportional to 1,986,074.19, 2,740,701.67 and 1,126,615.99 is: 1,554,684.28
Step by Step Solution
- Step 1: Write the proportion equation
1,986,074.19 : 2,740,701.67 = 1,126,615.99 : x - Step 2: Convert to fraction form
1,986,074.19/2,740,701.67 = 1,126,615.99/x - Step 3: Cross multiply
1,986,074.19x = 2,740,701.67 × 1,126,615.99 - Step 4: Simplify right side
1,986,074.19x = 3,087,718,325,241.70 - Step 5: Solve for x
x = 3,087,718,325,241.70/1,986,074.19 - Step 6: Final answer
x = 1,554,684.28
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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.