Finding the Fourth Proportional to 1,621,203.70, 2,431,805.55 and 1,488,493.30
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Solution
The fourth proportional to 1,621,203.70, 2,431,805.55 and 1,488,493.30 is: 2,232,739.95
Step by Step Solution
- Step 1: Write the proportion equation
1,621,203.70 : 2,431,805.55 = 1,488,493.30 : x - Step 2: Convert to fraction form
1,621,203.70/2,431,805.55 = 1,488,493.30/x - Step 3: Cross multiply
1,621,203.70x = 2,431,805.55 × 1,488,493.30 - Step 4: Simplify right side
1,621,203.70x = 3,619,726,268,077.82 - Step 5: Solve for x
x = 3,619,726,268,077.82/1,621,203.70 - Step 6: Final answer
x = 2,232,739.95
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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.