Finding the Fourth Proportional to 1,603,299.17, 2,212,473.89 and 878,150.09
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Solution
The fourth proportional to 1,603,299.17, 2,212,473.89 and 878,150.09 is: 1,211,803.87
Step by Step Solution
- Step 1: Write the proportion equation
1,603,299.17 : 2,212,473.89 = 878,150.09 : x - Step 2: Convert to fraction form
1,603,299.17/2,212,473.89 = 878,150.09/x - Step 3: Cross multiply
1,603,299.17x = 2,212,473.89 × 878,150.09 - Step 4: Simplify right side
1,603,299.17x = 1,942,884,141,235.40 - Step 5: Solve for x
x = 1,942,884,141,235.40/1,603,299.17 - Step 6: Final answer
x = 1,211,803.87
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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.