Finding the Fourth Proportional to 493,245.09, 680,697.27 and 278,380.53
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Solution
The fourth proportional to 493,245.09, 680,697.27 and 278,380.53 is: 384,175.88
Step by Step Solution
- Step 1: Write the proportion equation
493,245.09 : 680,697.27 = 278,380.53 : x - Step 2: Convert to fraction form
493,245.09/680,697.27 = 278,380.53/x - Step 3: Cross multiply
493,245.09x = 680,697.27 × 278,380.53 - Step 4: Simplify right side
493,245.09x = 189,492,866,792.15 - Step 5: Solve for x
x = 189,492,866,792.15/493,245.09 - Step 6: Final answer
x = 384,175.88
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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.