Finding the Fourth Proportional to 547,925.14, 756,139.50 and 306,211.75
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Solution
The fourth proportional to 547,925.14, 756,139.50 and 306,211.75 is: 422,573.78
Step by Step Solution
- Step 1: Write the proportion equation
547,925.14 : 756,139.50 = 306,211.75 : x - Step 2: Convert to fraction form
547,925.14/756,139.50 = 306,211.75/x - Step 3: Cross multiply
547,925.14x = 756,139.50 × 306,211.75 - Step 4: Simplify right side
547,925.14x = 231,538,799,539.13 - Step 5: Solve for x
x = 231,538,799,539.13/547,925.14 - Step 6: Final answer
x = 422,573.78
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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.