Finding the Fourth Proportional to 920.33, 1,269.99 and 521.99
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Solution
The fourth proportional to 920.33, 1,269.99 and 521.99 is: 720.31
Step by Step Solution
- Step 1: Write the proportion equation
920.33 : 1,269.99 = 521.99 : x - Step 2: Convert to fraction form
920.33/1,269.99 = 521.99/x - Step 3: Cross multiply
920.33x = 1,269.99 × 521.99 - Step 4: Simplify right side
920.33x = 662,922.08 - Step 5: Solve for x
x = 662,922.08/920.33 - Step 6: Final answer
x = 720.31
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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.