Finding the Fourth Proportional to 884.62, 1,220.63 and 511.65
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Solution
The fourth proportional to 884.62, 1,220.63 and 511.65 is: 705.99
Step by Step Solution
- Step 1: Write the proportion equation
884.62 : 1,220.63 = 511.65 : x - Step 2: Convert to fraction form
884.62/1,220.63 = 511.65/x - Step 3: Cross multiply
884.62x = 1,220.63 × 511.65 - Step 4: Simplify right side
884.62x = 624,526.68 - Step 5: Solve for x
x = 624,526.68/884.62 - Step 6: Final answer
x = 705.99
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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.