Finding the Fourth Proportional to 1,221,442.62, 1,831,305.44 and 538,005.12
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Solution
The fourth proportional to 1,221,442.62, 1,831,305.44 and 538,005.12 is: 806,629.54
Step by Step Solution
- Step 1: Write the proportion equation
1,221,442.62 : 1,831,305.44 = 538,005.12 : x - Step 2: Convert to fraction form
1,221,442.62/1,831,305.44 = 538,005.12/x - Step 3: Cross multiply
1,221,442.62x = 1,831,305.44 × 538,005.12 - Step 4: Simplify right side
1,221,442.62x = 985,251,703,003.85 - Step 5: Solve for x
x = 985,251,703,003.85/1,221,442.62 - Step 6: Final answer
x = 806,629.54
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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.