Finding the Fourth Proportional to 1,257,401.20, 1,886,102.41 and 415,952.95
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Solution
The fourth proportional to 1,257,401.20, 1,886,102.41 and 415,952.95 is: 623,929.63
Step by Step Solution
- Step 1: Write the proportion equation
1,257,401.20 : 1,886,102.41 = 415,952.95 : x - Step 2: Convert to fraction form
1,257,401.20/1,886,102.41 = 415,952.95/x - Step 3: Cross multiply
1,257,401.20x = 1,886,102.41 × 415,952.95 - Step 4: Simplify right side
1,257,401.20x = 784,529,859,361.85 - Step 5: Solve for x
x = 784,529,859,361.85/1,257,401.20 - Step 6: Final answer
x = 623,929.63
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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.