Finding the Fourth Proportional to 4,921,207.40, 7,381,811.10 and 1,556,445.80
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Solution
The fourth proportional to 4,921,207.40, 7,381,811.10 and 1,556,445.80 is: 2,334,668.70
Step by Step Solution
- Step 1: Write the proportion equation
4,921,207.40 : 7,381,811.10 = 1,556,445.80 : x - Step 2: Convert to fraction form
4,921,207.40/7,381,811.10 = 1,556,445.80/x - Step 3: Cross multiply
4,921,207.40x = 7,381,811.10 × 1,556,445.80 - Step 4: Simplify right side
4,921,207.40x = 11,489,388,882,988.38 - Step 5: Solve for x
x = 11,489,388,882,988.38/4,921,207.40 - Step 6: Final answer
x = 2,334,668.70
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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.