Finding the Fourth Proportional to 415,591.84, 573,250.80 and 288,220.96
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Solution
The fourth proportional to 415,591.84, 573,250.80 and 288,220.96 is: 397,560.49
Step by Step Solution
- Step 1: Write the proportion equation
415,591.84 : 573,250.80 = 288,220.96 : x - Step 2: Convert to fraction form
415,591.84/573,250.80 = 288,220.96/x - Step 3: Cross multiply
415,591.84x = 573,250.80 × 288,220.96 - Step 4: Simplify right side
415,591.84x = 165,222,895,896.77 - Step 5: Solve for x
x = 165,222,895,896.77/415,591.84 - Step 6: Final answer
x = 397,560.49
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1.5x scale
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.