Finding the Fourth Proportional to 392,630.49, 589,120.70 and 205,598.25
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Solution
The fourth proportional to 392,630.49, 589,120.70 and 205,598.25 is: 308,488.99
Step by Step Solution
- Step 1: Write the proportion equation
392,630.49 : 589,120.70 = 205,598.25 : x - Step 2: Convert to fraction form
392,630.49/589,120.70 = 205,598.25/x - Step 3: Cross multiply
392,630.49x = 589,120.70 × 205,598.25 - Step 4: Simplify right side
392,630.49x = 121,122,183,930.78 - Step 5: Solve for x
x = 121,122,183,930.78/392,630.49 - Step 6: Final answer
x = 308,488.99
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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.