Finding the Fourth Proportional to 1,243,163.55, 1,864,560.57 and 344,511.58
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Solution
The fourth proportional to 1,243,163.55, 1,864,560.57 and 344,511.58 is: 516,716.17
Step by Step Solution
- Step 1: Write the proportion equation
1,243,163.55 : 1,864,560.57 = 344,511.58 : x - Step 2: Convert to fraction form
1,243,163.55/1,864,560.57 = 344,511.58/x - Step 3: Cross multiply
1,243,163.55x = 1,864,560.57 × 344,511.58 - Step 4: Simplify right side
1,243,163.55x = 642,362,705,519.13 - Step 5: Solve for x
x = 642,362,705,519.13/1,243,163.55 - Step 6: Final answer
x = 516,716.17
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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.