Finding the Fourth Proportional to 2,808,728.12, 4,213,092.84 and 678,812.00
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Solution
The fourth proportional to 2,808,728.12, 4,213,092.84 and 678,812.00 is: 1,018,218.15
Step by Step Solution
- Step 1: Write the proportion equation
2,808,728.12 : 4,213,092.84 = 678,812.00 : x - Step 2: Convert to fraction form
2,808,728.12/4,213,092.84 = 678,812.00/x - Step 3: Cross multiply
2,808,728.12x = 4,213,092.84 × 678,812.00 - Step 4: Simplify right side
2,808,728.12x = 2,859,897,955,840.62 - Step 5: Solve for x
x = 2,859,897,955,840.62/2,808,728.12 - Step 6: Final answer
x = 1,018,218.15
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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.