Finding the Fourth Proportional to 3,138,276.90, 4,707,415.35 and 863,796.90
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Solution
The fourth proportional to 3,138,276.90, 4,707,415.35 and 863,796.90 is: 1,295,695.35
Step by Step Solution
- Step 1: Write the proportion equation
3,138,276.90 : 4,707,415.35 = 863,796.90 : x - Step 2: Convert to fraction form
3,138,276.90/4,707,415.35 = 863,796.90/x - Step 3: Cross multiply
3,138,276.90x = 4,707,415.35 × 863,796.90 - Step 4: Simplify right side
3,138,276.90x = 4,066,250,786,342.41 - Step 5: Solve for x
x = 4,066,250,786,342.41/3,138,276.90 - Step 6: Final answer
x = 1,295,695.35
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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.