Finding the Fourth Proportional to 386,644.87, 579,675.57 and 253,558.63
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Solution
The fourth proportional to 386,644.87, 579,675.57 and 253,558.63 is: 380,146.63
Step by Step Solution
- Step 1: Write the proportion equation
386,644.87 : 579,675.57 = 253,558.63 : x - Step 2: Convert to fraction form
386,644.87/579,675.57 = 253,558.63/x - Step 3: Cross multiply
386,644.87x = 579,675.57 × 253,558.63 - Step 4: Simplify right side
386,644.87x = 146,981,743,373.67 - Step 5: Solve for x
x = 146,981,743,373.67/386,644.87 - Step 6: Final answer
x = 380,146.63
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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.