Finding the Fourth Proportional to 875,106.81, 1,207,640.22 and 487,917.63
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Solution
The fourth proportional to 875,106.81, 1,207,640.22 and 487,917.63 is: 673,322.33
Step by Step Solution
- Step 1: Write the proportion equation
875,106.81 : 1,207,640.22 = 487,917.63 : x - Step 2: Convert to fraction form
875,106.81/1,207,640.22 = 487,917.63/x - Step 3: Cross multiply
875,106.81x = 1,207,640.22 × 487,917.63 - Step 4: Simplify right side
875,106.81x = 589,228,954,035.08 - Step 5: Solve for x
x = 589,228,954,035.08/875,106.81 - Step 6: Final answer
x = 673,322.33
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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.