Finding the Fourth Proportional to 1,135.68, 1,702.44 and 486
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Solution
The fourth proportional to 1,135.68, 1,702.44 and 486 is: 728.54
Step by Step Solution
- Step 1: Write the proportion equation
1,135.68 : 1,702.44 = 486 : x - Step 2: Convert to fraction form
1,135.68/1,702.44 = 486/x - Step 3: Cross multiply
1,135.68x = 1,702.44 × 486 - Step 4: Simplify right side
1,135.68x = 827,385.84 - Step 5: Solve for x
x = 827,385.84/1,135.68 - Step 6: Final answer
x = 728.54
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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.