Finding the Fourth Proportional to 385,805.06, 578,614.62 and 115,876.41
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Solution
The fourth proportional to 385,805.06, 578,614.62 and 115,876.41 is: 173,786.69
Step by Step Solution
- Step 1: Write the proportion equation
385,805.06 : 578,614.62 = 115,876.41 : x - Step 2: Convert to fraction form
385,805.06/578,614.62 = 115,876.41/x - Step 3: Cross multiply
385,805.06x = 578,614.62 × 115,876.41 - Step 4: Simplify right side
385,805.06x = 67,047,784,939.11 - Step 5: Solve for x
x = 67,047,784,939.11/385,805.06 - Step 6: Final answer
x = 173,786.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.