Finding the Fourth Proportional to 1,135.27, 1,703.62 and 486
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Solution
The fourth proportional to 1,135.27, 1,703.62 and 486 is: 729.31
Step by Step Solution
- Step 1: Write the proportion equation
1,135.27 : 1,703.62 = 486 : x - Step 2: Convert to fraction form
1,135.27/1,703.62 = 486/x - Step 3: Cross multiply
1,135.27x = 1,703.62 × 486 - Step 4: Simplify right side
1,135.27x = 827,959.24 - Step 5: Solve for x
x = 827,959.24/1,135.27 - Step 6: Final answer
x = 729.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.