Finding the Fourth Proportional to 3,408,991.08, 5,113,285.92 and 1,278,896.64
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Solution
The fourth proportional to 3,408,991.08, 5,113,285.92 and 1,278,896.64 is: 1,918,269.67
Step by Step Solution
- Step 1: Write the proportion equation
3,408,991.08 : 5,113,285.92 = 1,278,896.64 : x - Step 2: Convert to fraction form
3,408,991.08/5,113,285.92 = 1,278,896.64/x - Step 3: Cross multiply
3,408,991.08x = 5,113,285.92 × 1,278,896.64 - Step 4: Simplify right side
3,408,991.08x = 6,539,364,182,447.31 - Step 5: Solve for x
x = 6,539,364,182,447.31/3,408,991.08 - Step 6: Final answer
x = 1,918,269.67
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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.