Finding the Fourth Proportional to 416,603.40, 624,905.10 and 379,861.80
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Solution
The fourth proportional to 416,603.40, 624,905.10 and 379,861.80 is: 569,792.70
Step by Step Solution
- Step 1: Write the proportion equation
416,603.40 : 624,905.10 = 379,861.80 : x - Step 2: Convert to fraction form
416,603.40/624,905.10 = 379,861.80/x - Step 3: Cross multiply
416,603.40x = 624,905.10 × 379,861.80 - Step 4: Simplify right side
416,603.40x = 237,377,576,115.18 - Step 5: Solve for x
x = 237,377,576,115.18/416,603.40 - Step 6: Final answer
x = 569,792.70
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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.