Finding the Fourth Proportional to 1,198,812.79, 1,789,474.31 and 1,047,475.09
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Solution
The fourth proportional to 1,198,812.79, 1,789,474.31 and 1,047,475.09 is: 1,563,571.71
Step by Step Solution
- Step 1: Write the proportion equation
1,198,812.79 : 1,789,474.31 = 1,047,475.09 : x - Step 2: Convert to fraction form
1,198,812.79/1,789,474.31 = 1,047,475.09/x - Step 3: Cross multiply
1,198,812.79x = 1,789,474.31 × 1,047,475.09 - Step 4: Simplify right side
1,198,812.79x = 1,874,429,763,919.94 - Step 5: Solve for x
x = 1,874,429,763,919.94/1,198,812.79 - Step 6: Final answer
x = 1,563,571.71
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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.