Finding the Fourth Proportional to 665,117.40, 997,676.10 and 628,375.80
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Solution
The fourth proportional to 665,117.40, 997,676.10 and 628,375.80 is: 942,563.70
Step by Step Solution
- Step 1: Write the proportion equation
665,117.40 : 997,676.10 = 628,375.80 : x - Step 2: Convert to fraction form
665,117.40/997,676.10 = 628,375.80/x - Step 3: Cross multiply
665,117.40x = 997,676.10 × 628,375.80 - Step 4: Simplify right side
665,117.40x = 626,915,517,478.38 - Step 5: Solve for x
x = 626,915,517,478.38/665,117.40 - Step 6: Final answer
x = 942,563.70
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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.