Finding the Fourth Proportional to 497,482.85, 686,493.50 and 279,725.09
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Solution
The fourth proportional to 497,482.85, 686,493.50 and 279,725.09 is: 386,002.15
Step by Step Solution
- Step 1: Write the proportion equation
497,482.85 : 686,493.50 = 279,725.09 : x - Step 2: Convert to fraction form
497,482.85/686,493.50 = 279,725.09/x - Step 3: Cross multiply
497,482.85x = 686,493.50 × 279,725.09 - Step 4: Simplify right side
497,482.85x = 192,029,451,240.82 - Step 5: Solve for x
x = 192,029,451,240.82/497,482.85 - Step 6: Final answer
x = 386,002.15
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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.