Finding the Fourth Proportional to 3,838,408.09, 5,757,216.52 and 1,279,346.53
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Solution
The fourth proportional to 3,838,408.09, 5,757,216.52 and 1,279,346.53 is: 1,918,887.94
Step by Step Solution
- Step 1: Write the proportion equation
3,838,408.09 : 5,757,216.52 = 1,279,346.53 : x - Step 2: Convert to fraction form
3,838,408.09/5,757,216.52 = 1,279,346.53/x - Step 3: Cross multiply
3,838,408.09x = 5,757,216.52 × 1,279,346.53 - Step 4: Simplify right side
3,838,408.09x = 7,365,474,977,320.68 - Step 5: Solve for x
x = 7,365,474,977,320.68/3,838,408.09 - Step 6: Final answer
x = 1,918,887.94
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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.