Finding the Fourth Proportional to 485,425.28, 669,889.96 and 270,578.96
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Solution
The fourth proportional to 485,425.28, 669,889.96 and 270,578.96 is: 373,400.68
Step by Step Solution
- Step 1: Write the proportion equation
485,425.28 : 669,889.96 = 270,578.96 : x - Step 2: Convert to fraction form
485,425.28/669,889.96 = 270,578.96/x - Step 3: Cross multiply
485,425.28x = 669,889.96 × 270,578.96 - Step 4: Simplify right side
485,425.28x = 181,258,128,691.24 - Step 5: Solve for x
x = 181,258,128,691.24/485,425.28 - Step 6: Final answer
x = 373,400.68
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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.