Finding the Fourth Proportional to 416,515.80, 624,773.70 and 206,563.80
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Solution
The fourth proportional to 416,515.80, 624,773.70 and 206,563.80 is: 309,845.70
Step by Step Solution
- Step 1: Write the proportion equation
416,515.80 : 624,773.70 = 206,563.80 : x - Step 2: Convert to fraction form
416,515.80/624,773.70 = 206,563.80/x - Step 3: Cross multiply
416,515.80x = 624,773.70 × 206,563.80 - Step 4: Simplify right side
416,515.80x = 129,055,629,612.06 - Step 5: Solve for x
x = 129,055,629,612.06/416,515.80 - Step 6: Final answer
x = 309,845.70
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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.