Finding the Fourth Proportional to 457,690.36, 686,581.68 and 120,754.30
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Solution
The fourth proportional to 457,690.36, 686,581.68 and 120,754.30 is: 181,143.62
Step by Step Solution
- Step 1: Write the proportion equation
457,690.36 : 686,581.68 = 120,754.30 : x - Step 2: Convert to fraction form
457,690.36/686,581.68 = 120,754.30/x - Step 3: Cross multiply
457,690.36x = 686,581.68 × 120,754.30 - Step 4: Simplify right side
457,690.36x = 82,907,690,161.22 - Step 5: Solve for x
x = 82,907,690,161.22/457,690.36 - Step 6: Final answer
x = 181,143.62
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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.