Finding the Fourth Proportional to 1,971,482.20, 2,684,149.36 and 1,965,409.63
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Solution
The fourth proportional to 1,971,482.20, 2,684,149.36 and 1,965,409.63 is: 2,675,881.63
Step by Step Solution
- Step 1: Write the proportion equation
1,971,482.20 : 2,684,149.36 = 1,965,409.63 : x - Step 2: Convert to fraction form
1,971,482.20/2,684,149.36 = 1,965,409.63/x - Step 3: Cross multiply
1,971,482.20x = 2,684,149.36 × 1,965,409.63 - Step 4: Simplify right side
1,971,482.20x = 5,275,452,988,878.44 - Step 5: Solve for x
x = 5,275,452,988,878.44/1,971,482.20 - Step 6: Final answer
x = 2,675,881.63
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.