Finding the Fourth Proportional to 1,394,900.80, 2,091,832.80 and 553,278.40
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Solution
The fourth proportional to 1,394,900.80, 2,091,832.80 and 553,278.40 is: 829,711.98
Step by Step Solution
- Step 1: Write the proportion equation
1,394,900.80 : 2,091,832.80 = 553,278.40 : x - Step 2: Convert to fraction form
1,394,900.80/2,091,832.80 = 553,278.40/x - Step 3: Cross multiply
1,394,900.80x = 2,091,832.80 × 553,278.40 - Step 4: Simplify right side
1,394,900.80x = 1,157,365,904,651.52 - Step 5: Solve for x
x = 1,157,365,904,651.52/1,394,900.80 - Step 6: Final answer
x = 829,711.98
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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.