Finding the Fourth Proportional to 515,729.70, 772,938.45 and 248,915.70
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Solution
The fourth proportional to 515,729.70, 772,938.45 and 248,915.70 is: 373,056.88
Step by Step Solution
- Step 1: Write the proportion equation
515,729.70 : 772,938.45 = 248,915.70 : x - Step 2: Convert to fraction form
515,729.70/772,938.45 = 248,915.70/x - Step 3: Cross multiply
515,729.70x = 772,938.45 × 248,915.70 - Step 4: Simplify right side
515,729.70x = 192,396,515,338.67 - Step 5: Solve for x
x = 192,396,515,338.67/515,729.70 - Step 6: Final answer
x = 373,056.88
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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.