Finding the Fourth Proportional to 2,106,546.96, 2,906,962.92 and 1,201,420.56
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Solution
The fourth proportional to 2,106,546.96, 2,906,962.92 and 1,201,420.56 is: 1,657,919.37
Step by Step Solution
- Step 1: Write the proportion equation
2,106,546.96 : 2,906,962.92 = 1,201,420.56 : x - Step 2: Convert to fraction form
2,106,546.96/2,906,962.92 = 1,201,420.56/x - Step 3: Cross multiply
2,106,546.96x = 2,906,962.92 × 1,201,420.56 - Step 4: Simplify right side
2,106,546.96x = 3,492,485,019,245.64 - Step 5: Solve for x
x = 3,492,485,019,245.64/2,106,546.96 - Step 6: Final answer
x = 1,657,919.37
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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.