Finding the Fourth Proportional to 870,420.13, 1,305,568.23 and 230,709.66
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Solution
The fourth proportional to 870,420.13, 1,305,568.23 and 230,709.66 is: 346,048.07
Step by Step Solution
- Step 1: Write the proportion equation
870,420.13 : 1,305,568.23 = 230,709.66 : x - Step 2: Convert to fraction form
870,420.13/1,305,568.23 = 230,709.66/x - Step 3: Cross multiply
870,420.13x = 1,305,568.23 × 230,709.66 - Step 4: Simplify right side
870,420.13x = 301,207,202,450.10 - Step 5: Solve for x
x = 301,207,202,450.10/870,420.13 - Step 6: Final answer
x = 346,048.07
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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.