Finding the Fourth Proportional to 880.97, 1,214.07 and 644.99
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Solution
The fourth proportional to 880.97, 1,214.07 and 644.99 is: 888.86
Step by Step Solution
- Step 1: Write the proportion equation
880.97 : 1,214.07 = 644.99 : x - Step 2: Convert to fraction form
880.97/1,214.07 = 644.99/x - Step 3: Cross multiply
880.97x = 1,214.07 × 644.99 - Step 4: Simplify right side
880.97x = 783,063.63 - Step 5: Solve for x
x = 783,063.63/880.97 - Step 6: Final answer
x = 888.86
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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.