Finding the Fourth Proportional to 3,924,788.80, 5,416,257.36 and 2,376,029.92
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Solution
The fourth proportional to 3,924,788.80, 5,416,257.36 and 2,376,029.92 is: 3,278,950.84
Step by Step Solution
- Step 1: Write the proportion equation
3,924,788.80 : 5,416,257.36 = 2,376,029.92 : x - Step 2: Convert to fraction form
3,924,788.80/5,416,257.36 = 2,376,029.92/x - Step 3: Cross multiply
3,924,788.80x = 5,416,257.36 × 2,376,029.92 - Step 4: Simplify right side
3,924,788.80x = 12,869,189,541,780.21 - Step 5: Solve for x
x = 12,869,189,541,780.21/3,924,788.80 - Step 6: Final answer
x = 3,278,950.84
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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.