Finding the Fourth Proportional to 445,501.20, 668,251.80 and 379,235.10
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Solution
The fourth proportional to 445,501.20, 668,251.80 and 379,235.10 is: 568,852.65
Step by Step Solution
- Step 1: Write the proportion equation
445,501.20 : 668,251.80 = 379,235.10 : x - Step 2: Convert to fraction form
445,501.20/668,251.80 = 379,235.10/x - Step 3: Cross multiply
445,501.20x = 668,251.80 × 379,235.10 - Step 4: Simplify right side
445,501.20x = 253,424,538,198.18 - Step 5: Solve for x
x = 253,424,538,198.18/445,501.20 - Step 6: Final answer
x = 568,852.65
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Double scale
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Similar ratio
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1.5x scale
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.