Finding the Fourth Proportional to 1,203,453.12, 1,804,713.12 and 642,181.44
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Solution
The fourth proportional to 1,203,453.12, 1,804,713.12 and 642,181.44 is: 963,023.20
Step by Step Solution
- Step 1: Write the proportion equation
1,203,453.12 : 1,804,713.12 = 642,181.44 : x - Step 2: Convert to fraction form
1,203,453.12/1,804,713.12 = 642,181.44/x - Step 3: Cross multiply
1,203,453.12x = 1,804,713.12 × 642,181.44 - Step 4: Simplify right side
1,203,453.12x = 1,158,953,270,188.49 - Step 5: Solve for x
x = 1,158,953,270,188.49/1,203,453.12 - Step 6: Final answer
x = 963,023.20
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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.