Finding the Fourth Proportional to 3,128,244.21, 4,692,381.93 and 1,106,489.98
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Solution
The fourth proportional to 3,128,244.21, 4,692,381.93 and 1,106,489.98 is: 1,659,740.49
Step by Step Solution
- Step 1: Write the proportion equation
3,128,244.21 : 4,692,381.93 = 1,106,489.98 : x - Step 2: Convert to fraction form
3,128,244.21/4,692,381.93 = 1,106,489.98/x - Step 3: Cross multiply
3,128,244.21x = 4,692,381.93 × 1,106,489.98 - Step 4: Simplify right side
3,128,244.21x = 5,192,073,576,147.11 - Step 5: Solve for x
x = 5,192,073,576,147.11/3,128,244.21 - Step 6: Final answer
x = 1,659,740.49
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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.