Finding the Fourth Proportional to 416,129.40, 624,194.10 and 346,087.80
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Solution
The fourth proportional to 416,129.40, 624,194.10 and 346,087.80 is: 519,131.70
Step by Step Solution
- Step 1: Write the proportion equation
416,129.40 : 624,194.10 = 346,087.80 : x - Step 2: Convert to fraction form
416,129.40/624,194.10 = 346,087.80/x - Step 3: Cross multiply
416,129.40x = 624,194.10 × 346,087.80 - Step 4: Simplify right side
416,129.40x = 216,025,962,841.98 - Step 5: Solve for x
x = 216,025,962,841.98/416,129.40 - Step 6: Final answer
x = 519,131.70
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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.