Finding the Fourth Proportional to 1,394,861.80, 2,092,292.70 and 987,423.70
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Solution
The fourth proportional to 1,394,861.80, 2,092,292.70 and 987,423.70 is: 1,481,135.55
Step by Step Solution
- Step 1: Write the proportion equation
1,394,861.80 : 2,092,292.70 = 987,423.70 : x - Step 2: Convert to fraction form
1,394,861.80/2,092,292.70 = 987,423.70/x - Step 3: Cross multiply
1,394,861.80x = 2,092,292.70 × 987,423.70 - Step 4: Simplify right side
1,394,861.80x = 2,065,979,399,316.99 - Step 5: Solve for x
x = 2,065,979,399,316.99/1,394,861.80 - Step 6: Final answer
x = 1,481,135.55
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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.