Finding the Fourth Proportional to 2,078,812.36, 3,118,226.19 and 639,485.79
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Solution
The fourth proportional to 2,078,812.36, 3,118,226.19 and 639,485.79 is: 959,231.04
Step by Step Solution
- Step 1: Write the proportion equation
2,078,812.36 : 3,118,226.19 = 639,485.79 : x - Step 2: Convert to fraction form
2,078,812.36/3,118,226.19 = 639,485.79/x - Step 3: Cross multiply
2,078,812.36x = 3,118,226.19 × 639,485.79 - Step 4: Simplify right side
2,078,812.36x = 1,994,061,344,614.50 - Step 5: Solve for x
x = 1,994,061,344,614.50/2,078,812.36 - Step 6: Final answer
x = 959,231.04
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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.