Finding the Fourth Proportional to 2,105,192.63, 2,905,163.78 and 1,138,320.60
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Solution
The fourth proportional to 2,105,192.63, 2,905,163.78 and 1,138,320.60 is: 1,570,881.32
Step by Step Solution
- Step 1: Write the proportion equation
2,105,192.63 : 2,905,163.78 = 1,138,320.60 : x - Step 2: Convert to fraction form
2,105,192.63/2,905,163.78 = 1,138,320.60/x - Step 3: Cross multiply
2,105,192.63x = 2,905,163.78 × 1,138,320.60 - Step 4: Simplify right side
2,105,192.63x = 3,307,007,771,456.27 - Step 5: Solve for x
x = 3,307,007,771,456.27/2,105,192.63 - Step 6: Final answer
x = 1,570,881.32
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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.