Finding the Fourth Proportional to 3,939,787.08, 5,909,857.63 and 1,207,134.28
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Solution
The fourth proportional to 3,939,787.08, 5,909,857.63 and 1,207,134.28 is: 1,810,755.65
Step by Step Solution
- Step 1: Write the proportion equation
3,939,787.08 : 5,909,857.63 = 1,207,134.28 : x - Step 2: Convert to fraction form
3,939,787.08/5,909,857.63 = 1,207,134.28/x - Step 3: Cross multiply
3,939,787.08x = 5,909,857.63 × 1,207,134.28 - Step 4: Simplify right side
3,939,787.08x = 7,133,991,717,300.08 - Step 5: Solve for x
x = 7,133,991,717,300.08/3,939,787.08 - Step 6: Final answer
x = 1,810,755.65
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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.