Finding the Fourth Proportional to 453,741.20, 680,611.80 and 418,311.80
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Solution
The fourth proportional to 453,741.20, 680,611.80 and 418,311.80 is: 627,467.70
Step by Step Solution
- Step 1: Write the proportion equation
453,741.20 : 680,611.80 = 418,311.80 : x - Step 2: Convert to fraction form
453,741.20/680,611.80 = 418,311.80/x - Step 3: Cross multiply
453,741.20x = 680,611.80 × 418,311.80 - Step 4: Simplify right side
453,741.20x = 284,707,947,159.24 - Step 5: Solve for x
x = 284,707,947,159.24/453,741.20 - Step 6: Final answer
x = 627,467.70
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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.