Finding the Fourth Proportional to 821.93, 1,133.09 and 506.99
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Solution
The fourth proportional to 821.93, 1,133.09 and 506.99 is: 698.91
Step by Step Solution
- Step 1: Write the proportion equation
821.93 : 1,133.09 = 506.99 : x - Step 2: Convert to fraction form
821.93/1,133.09 = 506.99/x - Step 3: Cross multiply
821.93x = 1,133.09 × 506.99 - Step 4: Simplify right side
821.93x = 574,459.00 - Step 5: Solve for x
x = 574,459.00/821.93 - Step 6: Final answer
x = 698.91
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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.