Finding the Fourth Proportional to 3,438,445.05, 4,744,967.99 and 1,910,556.09
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Solution
The fourth proportional to 3,438,445.05, 4,744,967.99 and 1,910,556.09 is: 2,636,519.52
Step by Step Solution
- Step 1: Write the proportion equation
3,438,445.05 : 4,744,967.99 = 1,910,556.09 : x - Step 2: Convert to fraction form
3,438,445.05/4,744,967.99 = 1,910,556.09/x - Step 3: Cross multiply
3,438,445.05x = 4,744,967.99 × 1,910,556.09 - Step 4: Simplify right side
3,438,445.05x = 9,065,527,480,596.78 - Step 5: Solve for x
x = 9,065,527,480,596.78/3,438,445.05 - Step 6: Final answer
x = 2,636,519.52
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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.