Finding the Fourth Proportional to 888.36, 1,226 and 490.08
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Solution
The fourth proportional to 888.36, 1,226 and 490.08 is: 676.35
Step by Step Solution
- Step 1: Write the proportion equation
888.36 : 1,226 = 490.08 : x - Step 2: Convert to fraction form
888.36/1,226 = 490.08/x - Step 3: Cross multiply
888.36x = 1,226 × 490.08 - Step 4: Simplify right side
888.36x = 600,838.08 - Step 5: Solve for x
x = 600,838.08/888.36 - Step 6: Final answer
x = 676.35
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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.