Finding the Fourth Proportional to 920.99, 1,270.92 and 527.99
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Solution
The fourth proportional to 920.99, 1,270.92 and 527.99 is: 728.60
Step by Step Solution
- Step 1: Write the proportion equation
920.99 : 1,270.92 = 527.99 : x - Step 2: Convert to fraction form
920.99/1,270.92 = 527.99/x - Step 3: Cross multiply
920.99x = 1,270.92 × 527.99 - Step 4: Simplify right side
920.99x = 671,028.68 - Step 5: Solve for x
x = 671,028.68/920.99 - Step 6: Final answer
x = 728.60
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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.