Finding the Fourth Proportional to 2,321,480.18, 3,203,648.88 and 1,288,989.96
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Solution
The fourth proportional to 2,321,480.18, 3,203,648.88 and 1,288,989.96 is: 1,778,809.60
Step by Step Solution
- Step 1: Write the proportion equation
2,321,480.18 : 3,203,648.88 = 1,288,989.96 : x - Step 2: Convert to fraction form
2,321,480.18/3,203,648.88 = 1,288,989.96/x - Step 3: Cross multiply
2,321,480.18x = 3,203,648.88 × 1,288,989.96 - Step 4: Simplify right side
2,321,480.18x = 4,129,471,241,685.24 - Step 5: Solve for x
x = 4,129,471,241,685.24/2,321,480.18 - Step 6: Final answer
x = 1,778,809.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.