Finding the Fourth Proportional to 5,783,478.85, 7,971,238.78 and 3,846,277.99
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Solution
The fourth proportional to 5,783,478.85, 7,971,238.78 and 3,846,277.99 is: 5,301,238.42
Step by Step Solution
- Step 1: Write the proportion equation
5,783,478.85 : 7,971,238.78 = 3,846,277.99 : x - Step 2: Convert to fraction form
5,783,478.85/7,971,238.78 = 3,846,277.99/x - Step 3: Cross multiply
5,783,478.85x = 7,971,238.78 × 3,846,277.99 - Step 4: Simplify right side
5,783,478.85x = 30,659,600,272,548.45 - Step 5: Solve for x
x = 30,659,600,272,548.45/5,783,478.85 - Step 6: Final answer
x = 5,301,238.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.