Finding the Fourth Proportional to 512,872.70, 769,415.96 and 157,869.14
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Solution
The fourth proportional to 512,872.70, 769,415.96 and 157,869.14 is: 236,836.61
Step by Step Solution
- Step 1: Write the proportion equation
512,872.70 : 769,415.96 = 157,869.14 : x - Step 2: Convert to fraction form
512,872.70/769,415.96 = 157,869.14/x - Step 3: Cross multiply
512,872.70x = 769,415.96 × 157,869.14 - Step 4: Simplify right side
512,872.70x = 121,467,032,455.07 - Step 5: Solve for x
x = 121,467,032,455.07/512,872.70 - Step 6: Final answer
x = 236,836.61
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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.