Finding the Fourth Proportional to 1,136,574.16, 1,568,450.10 and 620,331.75
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Solution
The fourth proportional to 1,136,574.16, 1,568,450.10 and 620,331.75 is: 856,045.68
Step by Step Solution
- Step 1: Write the proportion equation
1,136,574.16 : 1,568,450.10 = 620,331.75 : x - Step 2: Convert to fraction form
1,136,574.16/1,568,450.10 = 620,331.75/x - Step 3: Cross multiply
1,136,574.16x = 1,568,450.10 × 620,331.75 - Step 4: Simplify right side
1,136,574.16x = 972,959,397,646.92 - Step 5: Solve for x
x = 972,959,397,646.92/1,136,574.16 - Step 6: Final answer
x = 856,045.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.