Finding the Fourth Proportional to 537,915.20, 806,872.80 and 513,420.80
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Solution
The fourth proportional to 537,915.20, 806,872.80 and 513,420.80 is: 770,131.20
Step by Step Solution
- Step 1: Write the proportion equation
537,915.20 : 806,872.80 = 513,420.80 : x - Step 2: Convert to fraction form
537,915.20/806,872.80 = 513,420.80/x - Step 3: Cross multiply
537,915.20x = 806,872.80 × 513,420.80 - Step 4: Simplify right side
537,915.20x = 414,265,278,474.24 - Step 5: Solve for x
x = 414,265,278,474.24/537,915.20 - Step 6: Final answer
x = 770,131.20
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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.