Finding the Fourth Proportional to 744,278.68, 1,116,249.84 and 211,787.92
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Solution
The fourth proportional to 744,278.68, 1,116,249.84 and 211,787.92 is: 317,634.02
Step by Step Solution
- Step 1: Write the proportion equation
744,278.68 : 1,116,249.84 = 211,787.92 : x - Step 2: Convert to fraction form
744,278.68/1,116,249.84 = 211,787.92/x - Step 3: Cross multiply
744,278.68x = 1,116,249.84 × 211,787.92 - Step 4: Simplify right side
744,278.68x = 236,408,231,813.93 - Step 5: Solve for x
x = 236,408,231,813.93/744,278.68 - Step 6: Final answer
x = 317,634.02
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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.