Finding the Fourth Proportional to 1,412,622.78, 2,105,626.79 and 1,299,248.70
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Solution
The fourth proportional to 1,412,622.78, 2,105,626.79 and 1,299,248.70 is: 1,936,633.69
Step by Step Solution
- Step 1: Write the proportion equation
1,412,622.78 : 2,105,626.79 = 1,299,248.70 : x - Step 2: Convert to fraction form
1,412,622.78/2,105,626.79 = 1,299,248.70/x - Step 3: Cross multiply
1,412,622.78x = 2,105,626.79 × 1,299,248.70 - Step 4: Simplify right side
1,412,622.78x = 2,735,732,863,096.43 - Step 5: Solve for x
x = 2,735,732,863,096.43/1,412,622.78 - Step 6: Final answer
x = 1,936,633.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.