Finding the Fourth Proportional to 1,518,742.20, 2,278,140.30 and 453,797.40
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Solution
The fourth proportional to 1,518,742.20, 2,278,140.30 and 453,797.40 is: 680,704.17
Step by Step Solution
- Step 1: Write the proportion equation
1,518,742.20 : 2,278,140.30 = 453,797.40 : x - Step 2: Convert to fraction form
1,518,742.20/2,278,140.30 = 453,797.40/x - Step 3: Cross multiply
1,518,742.20x = 2,278,140.30 × 453,797.40 - Step 4: Simplify right side
1,518,742.20x = 1,033,814,144,975.22 - Step 5: Solve for x
x = 1,033,814,144,975.22/1,518,742.20 - Step 6: Final answer
x = 680,704.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.