Finding the Fourth Proportional to 427,121.10, 589,542.30 and 245,891.70
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Solution
The fourth proportional to 427,121.10, 589,542.30 and 245,891.70 is: 339,396.86
Step by Step Solution
- Step 1: Write the proportion equation
427,121.10 : 589,542.30 = 245,891.70 : x - Step 2: Convert to fraction form
427,121.10/589,542.30 = 245,891.70/x - Step 3: Cross multiply
427,121.10x = 589,542.30 × 245,891.70 - Step 4: Simplify right side
427,121.10x = 144,963,558,368.91 - Step 5: Solve for x
x = 144,963,558,368.91/427,121.10 - Step 6: Final answer
x = 339,396.86
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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.