Finding the Fourth Proportional to 547,855.14, 756,025.58 and 306,139.70
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Solution
The fourth proportional to 547,855.14, 756,025.58 and 306,139.70 is: 422,464.68
Step by Step Solution
- Step 1: Write the proportion equation
547,855.14 : 756,025.58 = 306,139.70 : x - Step 2: Convert to fraction form
547,855.14/756,025.58 = 306,139.70/x - Step 3: Cross multiply
547,855.14x = 756,025.58 × 306,139.70 - Step 4: Simplify right side
547,855.14x = 231,449,446,908.94 - Step 5: Solve for x
x = 231,449,446,908.94/547,855.14 - Step 6: Final answer
x = 422,464.68
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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.