Finding the Fourth Proportional to 1,294,407.20, 1,940,152.80 and 620,811.20
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Solution
The fourth proportional to 1,294,407.20, 1,940,152.80 and 620,811.20 is: 930,517.53
Step by Step Solution
- Step 1: Write the proportion equation
1,294,407.20 : 1,940,152.80 = 620,811.20 : x - Step 2: Convert to fraction form
1,294,407.20/1,940,152.80 = 620,811.20/x - Step 3: Cross multiply
1,294,407.20x = 1,940,152.80 × 620,811.20 - Step 4: Simplify right side
1,294,407.20x = 1,204,468,587,951.36 - Step 5: Solve for x
x = 1,204,468,587,951.36/1,294,407.20 - Step 6: Final answer
x = 930,517.53
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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.