Finding the Fourth Proportional to 957,197.85, 1,320,915.92 and 521,618.99
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Solution
The fourth proportional to 957,197.85, 1,320,915.92 and 521,618.99 is: 719,824.88
Step by Step Solution
- Step 1: Write the proportion equation
957,197.85 : 1,320,915.92 = 521,618.99 : x - Step 2: Convert to fraction form
957,197.85/1,320,915.92 = 521,618.99/x - Step 3: Cross multiply
957,197.85x = 1,320,915.92 × 521,618.99 - Step 4: Simplify right side
957,197.85x = 689,014,822,764.79 - Step 5: Solve for x
x = 689,014,822,764.79/957,197.85 - Step 6: Final answer
x = 719,824.88
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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.