Finding the Fourth Proportional to 1,191,190.65, 1,785,996.09 and 432,942.09
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Solution
The fourth proportional to 1,191,190.65, 1,785,996.09 and 432,942.09 is: 649,126.05
Step by Step Solution
- Step 1: Write the proportion equation
1,191,190.65 : 1,785,996.09 = 432,942.09 : x - Step 2: Convert to fraction form
1,191,190.65/1,785,996.09 = 432,942.09/x - Step 3: Cross multiply
1,191,190.65x = 1,785,996.09 × 432,942.09 - Step 4: Simplify right side
1,191,190.65x = 773,232,879,936.43 - Step 5: Solve for x
x = 773,232,879,936.43/1,191,190.65 - Step 6: Final answer
x = 649,126.05
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1.5x scale
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.