Finding the Fourth Proportional to 699,043.41, 964,670.67 and 393,119.70
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Solution
The fourth proportional to 699,043.41, 964,670.67 and 393,119.70 is: 542,499.99
Step by Step Solution
- Step 1: Write the proportion equation
699,043.41 : 964,670.67 = 393,119.70 : x - Step 2: Convert to fraction form
699,043.41/964,670.67 = 393,119.70/x - Step 3: Cross multiply
699,043.41x = 964,670.67 × 393,119.70 - Step 4: Simplify right side
699,043.41x = 379,231,044,389.20 - Step 5: Solve for x
x = 379,231,044,389.20/699,043.41 - Step 6: Final answer
x = 542,499.99
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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.