Finding the Fourth Proportional to 497,815.80, 746,723.70 and 287,207.70
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Solution
The fourth proportional to 497,815.80, 746,723.70 and 287,207.70 is: 430,811.55
Step by Step Solution
- Step 1: Write the proportion equation
497,815.80 : 746,723.70 = 287,207.70 : x - Step 2: Convert to fraction form
497,815.80/746,723.70 = 287,207.70/x - Step 3: Cross multiply
497,815.80x = 746,723.70 × 287,207.70 - Step 4: Simplify right side
497,815.80x = 214,464,796,412.49 - Step 5: Solve for x
x = 214,464,796,412.49/497,815.80 - Step 6: Final answer
x = 430,811.55
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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.