Finding the Fourth Proportional to 3,835,905.12, 5,753,860.56 and 1,311,579.36
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Solution
The fourth proportional to 3,835,905.12, 5,753,860.56 and 1,311,579.36 is: 1,967,370.02
Step by Step Solution
- Step 1: Write the proportion equation
3,835,905.12 : 5,753,860.56 = 1,311,579.36 : x - Step 2: Convert to fraction form
3,835,905.12/5,753,860.56 = 1,311,579.36/x - Step 3: Cross multiply
3,835,905.12x = 5,753,860.56 × 1,311,579.36 - Step 4: Simplify right side
3,835,905.12x = 7,546,644,750,814.04 - Step 5: Solve for x
x = 7,546,644,750,814.04/3,835,905.12 - Step 6: Final answer
x = 1,967,370.02
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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.