Finding the Fourth Proportional to 718,858.08, 1,078,287.12 and 220,157.28
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Solution
The fourth proportional to 718,858.08, 1,078,287.12 and 220,157.28 is: 330,235.92
Step by Step Solution
- Step 1: Write the proportion equation
718,858.08 : 1,078,287.12 = 220,157.28 : x - Step 2: Convert to fraction form
718,858.08/1,078,287.12 = 220,157.28/x - Step 3: Cross multiply
718,858.08x = 1,078,287.12 × 220,157.28 - Step 4: Simplify right side
718,858.08x = 237,392,759,398.23 - Step 5: Solve for x
x = 237,392,759,398.23/718,858.08 - Step 6: Final answer
x = 330,235.92
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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.