Finding the Fourth Proportional to 769,650.24, 1,148,839.24 and 678,749.44
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Solution
The fourth proportional to 769,650.24, 1,148,839.24 and 678,749.44 is: 1,013,153.70
Step by Step Solution
- Step 1: Write the proportion equation
769,650.24 : 1,148,839.24 = 678,749.44 : x - Step 2: Convert to fraction form
769,650.24/1,148,839.24 = 678,749.44/x - Step 3: Cross multiply
769,650.24x = 1,148,839.24 × 678,749.44 - Step 4: Simplify right side
769,650.24x = 779,773,990,800.03 - Step 5: Solve for x
x = 779,773,990,800.03/769,650.24 - Step 6: Final answer
x = 1,013,153.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.