Finding the Fourth Proportional to 2,638,563.60, 3,956,117.40 and 1,040,163.60
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Solution
The fourth proportional to 2,638,563.60, 3,956,117.40 and 1,040,163.60 is: 1,559,564.20
Step by Step Solution
- Step 1: Write the proportion equation
2,638,563.60 : 3,956,117.40 = 1,040,163.60 : x - Step 2: Convert to fraction form
2,638,563.60/3,956,117.40 = 1,040,163.60/x - Step 3: Cross multiply
2,638,563.60x = 3,956,117.40 × 1,040,163.60 - Step 4: Simplify right side
2,638,563.60x = 4,115,009,316,806.64 - Step 5: Solve for x
x = 4,115,009,316,806.64/2,638,563.60 - Step 6: Final answer
x = 1,559,564.20
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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.