Finding the Fourth Proportional to 4,212,816.55, 6,319,880.92 and 1,372,268.05
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Solution
The fourth proportional to 4,212,816.55, 6,319,880.92 and 1,372,268.05 is: 2,058,615.79
Step by Step Solution
- Step 1: Write the proportion equation
4,212,816.55 : 6,319,880.92 = 1,372,268.05 : x - Step 2: Convert to fraction form
4,212,816.55/6,319,880.92 = 1,372,268.05/x - Step 3: Cross multiply
4,212,816.55x = 6,319,880.92 × 1,372,268.05 - Step 4: Simplify right side
4,212,816.55x = 8,672,570,652,236.24 - Step 5: Solve for x
x = 8,672,570,652,236.24/4,212,816.55 - Step 6: Final answer
x = 2,058,615.79
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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.