Finding the Fourth Proportional to 1,394,764.80, 2,092,147.20 and 987,326.70
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Solution
The fourth proportional to 1,394,764.80, 2,092,147.20 and 987,326.70 is: 1,480,990.05
Step by Step Solution
- Step 1: Write the proportion equation
1,394,764.80 : 2,092,147.20 = 987,326.70 : x - Step 2: Convert to fraction form
1,394,764.80/2,092,147.20 = 987,326.70/x - Step 3: Cross multiply
1,394,764.80x = 2,092,147.20 × 987,326.70 - Step 4: Simplify right side
1,394,764.80x = 2,065,632,790,890.24 - Step 5: Solve for x
x = 2,065,632,790,890.24/1,394,764.80 - Step 6: Final answer
x = 1,480,990.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.