Finding the Fourth Proportional to 657,843.53, 986,965.76 and 278,566.70
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Solution
The fourth proportional to 657,843.53, 986,965.76 and 278,566.70 is: 417,934.93
Step by Step Solution
- Step 1: Write the proportion equation
657,843.53 : 986,965.76 = 278,566.70 : x - Step 2: Convert to fraction form
657,843.53/986,965.76 = 278,566.70/x - Step 3: Cross multiply
657,843.53x = 986,965.76 × 278,566.70 - Step 4: Simplify right side
657,843.53x = 274,935,790,537.78 - Step 5: Solve for x
x = 274,935,790,537.78/657,843.53 - Step 6: Final answer
x = 417,934.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.