Finding the Fourth Proportional to 3,908,926.68, 5,859,921.27 and 1,478,379.88
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Solution
The fourth proportional to 3,908,926.68, 5,859,921.27 and 1,478,379.88 is: 2,216,257.92
Step by Step Solution
- Step 1: Write the proportion equation
3,908,926.68 : 5,859,921.27 = 1,478,379.88 : x - Step 2: Convert to fraction form
3,908,926.68/5,859,921.27 = 1,478,379.88/x - Step 3: Cross multiply
3,908,926.68x = 5,859,921.27 × 1,478,379.88 - Step 4: Simplify right side
3,908,926.68x = 8,663,189,694,103.15 - Step 5: Solve for x
x = 8,663,189,694,103.15/3,908,926.68 - Step 6: Final answer
x = 2,216,257.92
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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.