Finding the Fourth Proportional to 485,624.70, 728,437.05 and 275,672.70
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Solution
The fourth proportional to 485,624.70, 728,437.05 and 275,672.70 is: 413,509.05
Step by Step Solution
- Step 1: Write the proportion equation
485,624.70 : 728,437.05 = 275,672.70 : x - Step 2: Convert to fraction form
485,624.70/728,437.05 = 275,672.70/x - Step 3: Cross multiply
485,624.70x = 728,437.05 × 275,672.70 - Step 4: Simplify right side
485,624.70x = 200,810,208,353.54 - Step 5: Solve for x
x = 200,810,208,353.54/485,624.70 - Step 6: Final answer
x = 413,509.05
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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.