Finding the Fourth Proportional to 408,694.91, 613,130.60 and 124,407.68
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Solution
The fourth proportional to 408,694.91, 613,130.60 and 124,407.68 is: 186,638.38
Step by Step Solution
- Step 1: Write the proportion equation
408,694.91 : 613,130.60 = 124,407.68 : x - Step 2: Convert to fraction form
408,694.91/613,130.60 = 124,407.68/x - Step 3: Cross multiply
408,694.91x = 613,130.60 × 124,407.68 - Step 4: Simplify right side
408,694.91x = 76,278,156,393.80 - Step 5: Solve for x
x = 76,278,156,393.80/408,694.91 - Step 6: Final answer
x = 186,638.38
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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.