Finding the Fourth Proportional to 1,986,396.84, 2,741,522.76 and 1,170,339.66
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Solution
The fourth proportional to 1,986,396.84, 2,741,522.76 and 1,170,339.66 is: 1,615,242.61
Step by Step Solution
- Step 1: Write the proportion equation
1,986,396.84 : 2,741,522.76 = 1,170,339.66 : x - Step 2: Convert to fraction form
1,986,396.84/2,741,522.76 = 1,170,339.66/x - Step 3: Cross multiply
1,986,396.84x = 2,741,522.76 × 1,170,339.66 - Step 4: Simplify right side
1,986,396.84x = 3,208,512,814,820.66 - Step 5: Solve for x
x = 3,208,512,814,820.66/1,986,396.84 - Step 6: Final answer
x = 1,615,242.61
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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.