Finding the Fourth Proportional to 1,377,215.80, 2,065,942.70 and 379,943.80
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Solution
The fourth proportional to 1,377,215.80, 2,065,942.70 and 379,943.80 is: 569,948.53
Step by Step Solution
- Step 1: Write the proportion equation
1,377,215.80 : 2,065,942.70 = 379,943.80 : x - Step 2: Convert to fraction form
1,377,215.80/2,065,942.70 = 379,943.80/x - Step 3: Cross multiply
1,377,215.80x = 2,065,942.70 × 379,943.80 - Step 4: Simplify right side
1,377,215.80x = 784,942,120,020.26 - Step 5: Solve for x
x = 784,942,120,020.26/1,377,215.80 - Step 6: Final answer
x = 569,948.53
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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.