Finding the Fourth Proportional to 547,857.41, 756,028.69 and 306,141.95
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Solution
The fourth proportional to 547,857.41, 756,028.69 and 306,141.95 is: 422,467.77
Step by Step Solution
- Step 1: Write the proportion equation
547,857.41 : 756,028.69 = 306,141.95 : x - Step 2: Convert to fraction form
547,857.41/756,028.69 = 306,141.95/x - Step 3: Cross multiply
547,857.41x = 756,028.69 × 306,141.95 - Step 4: Simplify right side
547,857.41x = 231,452,098,537.26 - Step 5: Solve for x
x = 231,452,098,537.26/547,857.41 - Step 6: Final answer
x = 422,467.77
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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.