Finding the Fourth Proportional to 419,418.57, 578,872.68 and 247,326.11
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Solution
The fourth proportional to 419,418.57, 578,872.68 and 247,326.11 is: 341,354.28
Step by Step Solution
- Step 1: Write the proportion equation
419,418.57 : 578,872.68 = 247,326.11 : x - Step 2: Convert to fraction form
419,418.57/578,872.68 = 247,326.11/x - Step 3: Cross multiply
419,418.57x = 578,872.68 × 247,326.11 - Step 4: Simplify right side
419,418.57x = 143,170,325,235.31 - Step 5: Solve for x
x = 143,170,325,235.31/419,418.57 - Step 6: Final answer
x = 341,354.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.