Finding the Fourth Proportional to 1,203,487.12, 1,804,764.12 and 642,215.44
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Solution
The fourth proportional to 1,203,487.12, 1,804,764.12 and 642,215.44 is: 963,074.19
Step by Step Solution
- Step 1: Write the proportion equation
1,203,487.12 : 1,804,764.12 = 642,215.44 : x - Step 2: Convert to fraction form
1,203,487.12/1,804,764.12 = 642,215.44/x - Step 3: Cross multiply
1,203,487.12x = 1,804,764.12 × 642,215.44 - Step 4: Simplify right side
1,203,487.12x = 1,159,047,383,422.01 - Step 5: Solve for x
x = 1,159,047,383,422.01/1,203,487.12 - Step 6: Final answer
x = 963,074.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.