Finding the Fourth Proportional to 642,234.99, 886,285.35 and 351,840.18
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Solution
The fourth proportional to 642,234.99, 886,285.35 and 351,840.18 is: 485,540.03
Step by Step Solution
- Step 1: Write the proportion equation
642,234.99 : 886,285.35 = 351,840.18 : x - Step 2: Convert to fraction form
642,234.99/886,285.35 = 351,840.18/x - Step 3: Cross multiply
642,234.99x = 886,285.35 × 351,840.18 - Step 4: Simplify right side
642,234.99x = 311,830,797,075.36 - Step 5: Solve for x
x = 311,830,797,075.36/642,234.99 - Step 6: Final answer
x = 485,540.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.