Finding the Fourth Proportional to 586,415.20, 879,622.80 and 192,431.20
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Solution
The fourth proportional to 586,415.20, 879,622.80 and 192,431.20 is: 288,646.80
Step by Step Solution
- Step 1: Write the proportion equation
586,415.20 : 879,622.80 = 192,431.20 : x - Step 2: Convert to fraction form
586,415.20/879,622.80 = 192,431.20/x - Step 3: Cross multiply
586,415.20x = 879,622.80 × 192,431.20 - Step 4: Simplify right side
586,415.20x = 169,266,870,951.36 - Step 5: Solve for x
x = 169,266,870,951.36/586,415.20 - Step 6: Final answer
x = 288,646.80
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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.