Finding the Fourth Proportional to 3,782,812.80, 5,674,737.60 and 1,258,204.80
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Solution
The fourth proportional to 3,782,812.80, 5,674,737.60 and 1,258,204.80 is: 1,887,479.63
Step by Step Solution
- Step 1: Write the proportion equation
3,782,812.80 : 5,674,737.60 = 1,258,204.80 : x - Step 2: Convert to fraction form
3,782,812.80/5,674,737.60 = 1,258,204.80/x - Step 3: Cross multiply
3,782,812.80x = 5,674,737.60 × 1,258,204.80 - Step 4: Simplify right side
3,782,812.80x = 7,139,982,087,060.48 - Step 5: Solve for x
x = 7,139,982,087,060.48/3,782,812.80 - Step 6: Final answer
x = 1,887,479.63
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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.