Finding the Fourth Proportional to 872.68, 1,204.21 and 540.99
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Solution
The fourth proportional to 872.68, 1,204.21 and 540.99 is: 746.51
Step by Step Solution
- Step 1: Write the proportion equation
872.68 : 1,204.21 = 540.99 : x - Step 2: Convert to fraction form
872.68/1,204.21 = 540.99/x - Step 3: Cross multiply
872.68x = 1,204.21 × 540.99 - Step 4: Simplify right side
872.68x = 651,465.57 - Step 5: Solve for x
x = 651,465.57/872.68 - Step 6: Final answer
x = 746.51
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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.