Finding the Fourth Proportional to 826,480.93, 1,239,239.71 and 320,450.75
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Solution
The fourth proportional to 826,480.93, 1,239,239.71 and 320,450.75 is: 480,489.36
Step by Step Solution
- Step 1: Write the proportion equation
826,480.93 : 1,239,239.71 = 320,450.75 : x - Step 2: Convert to fraction form
826,480.93/1,239,239.71 = 320,450.75/x - Step 3: Cross multiply
826,480.93x = 1,239,239.71 × 320,450.75 - Step 4: Simplify right side
826,480.93x = 397,115,293,164.94 - Step 5: Solve for x
x = 397,115,293,164.94/826,480.93 - Step 6: Final answer
x = 480,489.36
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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.