Finding the Fourth Proportional to 976,078.20, 1,462,562.10 and 724,135.80
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Solution
The fourth proportional to 976,078.20, 1,462,562.10 and 724,135.80 is: 1,085,049.92
Step by Step Solution
- Step 1: Write the proportion equation
976,078.20 : 1,462,562.10 = 724,135.80 : x - Step 2: Convert to fraction form
976,078.20/1,462,562.10 = 724,135.80/x - Step 3: Cross multiply
976,078.20x = 1,462,562.10 × 724,135.80 - Step 4: Simplify right side
976,078.20x = 1,059,093,576,333.18 - Step 5: Solve for x
x = 1,059,093,576,333.18/976,078.20 - Step 6: Final answer
x = 1,085,049.92
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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.