Finding the Fourth Proportional to 870,450.29, 1,201,274.70 and 488,477.07
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Solution
The fourth proportional to 870,450.29, 1,201,274.70 and 488,477.07 is: 674,128.27
Step by Step Solution
- Step 1: Write the proportion equation
870,450.29 : 1,201,274.70 = 488,477.07 : x - Step 2: Convert to fraction form
870,450.29/1,201,274.70 = 488,477.07/x - Step 3: Cross multiply
870,450.29x = 1,201,274.70 × 488,477.07 - Step 4: Simplify right side
870,450.29x = 586,795,145,721.13 - Step 5: Solve for x
x = 586,795,145,721.13/870,450.29 - Step 6: Final answer
x = 674,128.27
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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.