Finding the Fourth Proportional to 1,230,129.20, 1,845,193.80 and 668,874.80
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Solution
The fourth proportional to 1,230,129.20, 1,845,193.80 and 668,874.80 is: 1,003,312.20
Step by Step Solution
- Step 1: Write the proportion equation
1,230,129.20 : 1,845,193.80 = 668,874.80 : x - Step 2: Convert to fraction form
1,230,129.20/1,845,193.80 = 668,874.80/x - Step 3: Cross multiply
1,230,129.20x = 1,845,193.80 × 668,874.80 - Step 4: Simplify right side
1,230,129.20x = 1,234,203,633,936.24 - Step 5: Solve for x
x = 1,234,203,633,936.24/1,230,129.20 - Step 6: Final answer
x = 1,003,312.20
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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.