Finding the Fourth Proportional to 3,321,521.60, 4,982,023.20 and 1,299,372.80
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Solution
The fourth proportional to 3,321,521.60, 4,982,023.20 and 1,299,372.80 is: 1,948,957.80
Step by Step Solution
- Step 1: Write the proportion equation
3,321,521.60 : 4,982,023.20 = 1,299,372.80 : x - Step 2: Convert to fraction form
3,321,521.60/4,982,023.20 = 1,299,372.80/x - Step 3: Cross multiply
3,321,521.60x = 4,982,023.20 × 1,299,372.80 - Step 4: Simplify right side
3,321,521.60x = 6,473,505,435,048.96 - Step 5: Solve for x
x = 6,473,505,435,048.96/3,321,521.60 - Step 6: Final answer
x = 1,948,957.80
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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.