Finding the Fourth Proportional to 624,129.80, 936,194.70 and 386,702.60
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Solution
The fourth proportional to 624,129.80, 936,194.70 and 386,702.60 is: 580,053.90
Step by Step Solution
- Step 1: Write the proportion equation
624,129.80 : 936,194.70 = 386,702.60 : x - Step 2: Convert to fraction form
624,129.80/936,194.70 = 386,702.60/x - Step 3: Cross multiply
624,129.80x = 936,194.70 × 386,702.60 - Step 4: Simplify right side
624,129.80x = 362,028,924,596.22 - Step 5: Solve for x
x = 362,028,924,596.22/624,129.80 - Step 6: Final answer
x = 580,053.90
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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.