Finding the Fourth Proportional to 1,405,250.10, 2,107,656.45 and 394,272.90
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Solution
The fourth proportional to 1,405,250.10, 2,107,656.45 and 394,272.90 is: 591,347.99
Step by Step Solution
- Step 1: Write the proportion equation
1,405,250.10 : 2,107,656.45 = 394,272.90 : x - Step 2: Convert to fraction form
1,405,250.10/2,107,656.45 = 394,272.90/x - Step 3: Cross multiply
1,405,250.10x = 2,107,656.45 × 394,272.90 - Step 4: Simplify right side
1,405,250.10x = 830,991,820,745.21 - Step 5: Solve for x
x = 830,991,820,745.21/1,405,250.10 - Step 6: Final answer
x = 591,347.99
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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.