Finding the Fourth Proportional to 1,420,679.21, 2,131,859.55 and 522,751.49
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Solution
The fourth proportional to 1,420,679.21, 2,131,859.55 and 522,751.49 is: 784,436.59
Step by Step Solution
- Step 1: Write the proportion equation
1,420,679.21 : 2,131,859.55 = 522,751.49 : x - Step 2: Convert to fraction form
1,420,679.21/2,131,859.55 = 522,751.49/x - Step 3: Cross multiply
1,420,679.21x = 2,131,859.55 × 522,751.49 - Step 4: Simplify right side
1,420,679.21x = 1,114,432,756,233.23 - Step 5: Solve for x
x = 1,114,432,756,233.23/1,420,679.21 - Step 6: Final answer
x = 784,436.59
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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.