Finding the Fourth Proportional to 647,163.84, 970,745.76 and 646,229.28
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Solution
The fourth proportional to 647,163.84, 970,745.76 and 646,229.28 is: 969,343.92
Step by Step Solution
- Step 1: Write the proportion equation
647,163.84 : 970,745.76 = 646,229.28 : x - Step 2: Convert to fraction form
647,163.84/970,745.76 = 646,229.28/x - Step 3: Cross multiply
647,163.84x = 970,745.76 × 646,229.28 - Step 4: Simplify right side
647,163.84x = 627,324,333,547.85 - Step 5: Solve for x
x = 627,324,333,547.85/647,163.84 - Step 6: Final answer
x = 969,343.92
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.