Finding the Fourth Proportional to 3,831,289.71, 5,282,884.43 and 3,131,398.62
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Solution
The fourth proportional to 3,831,289.71, 5,282,884.43 and 3,131,398.62 is: 4,317,819.39
Step by Step Solution
- Step 1: Write the proportion equation
3,831,289.71 : 5,282,884.43 = 3,131,398.62 : x - Step 2: Convert to fraction form
3,831,289.71/5,282,884.43 = 3,131,398.62/x - Step 3: Cross multiply
3,831,289.71x = 5,282,884.43 × 3,131,398.62 - Step 4: Simplify right side
3,831,289.71x = 16,542,817,013,721.49 - Step 5: Solve for x
x = 16,542,817,013,721.49/3,831,289.71 - Step 6: Final answer
x = 4,317,819.39
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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.