Finding the Fourth Proportional to 2,639,252.80, 3,642,211.20 and 1,432,028.80
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Solution
The fourth proportional to 2,639,252.80, 3,642,211.20 and 1,432,028.80 is: 1,976,222.72
Step by Step Solution
- Step 1: Write the proportion equation
2,639,252.80 : 3,642,211.20 = 1,432,028.80 : x - Step 2: Convert to fraction form
2,639,252.80/3,642,211.20 = 1,432,028.80/x - Step 3: Cross multiply
2,639,252.80x = 3,642,211.20 × 1,432,028.80 - Step 4: Simplify right side
2,639,252.80x = 5,215,751,334,082.56 - Step 5: Solve for x
x = 5,215,751,334,082.56/2,639,252.80 - Step 6: Final answer
x = 1,976,222.72
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1.5x scale
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.