Finding the Fourth Proportional to 1,905,163.92, 2,631,308.25 and 1,254,697.66
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Solution
The fourth proportional to 1,905,163.92, 2,631,308.25 and 1,254,697.66 is: 1,732,919.82
Step by Step Solution
- Step 1: Write the proportion equation
1,905,163.92 : 2,631,308.25 = 1,254,697.66 : x - Step 2: Convert to fraction form
1,905,163.92/2,631,308.25 = 1,254,697.66/x - Step 3: Cross multiply
1,905,163.92x = 2,631,308.25 × 1,254,697.66 - Step 4: Simplify right side
1,905,163.92x = 3,301,496,310,591.97 - Step 5: Solve for x
x = 3,301,496,310,591.97/1,905,163.92 - Step 6: Final answer
x = 1,732,919.82
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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.