Finding the Fourth Proportional to 413,621.70, 579,857.70 and 413,621.70
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Solution
The fourth proportional to 413,621.70, 579,857.70 and 413,621.70 is: 579,857.70
Step by Step Solution
- Step 1: Write the proportion equation
413,621.70 : 579,857.70 = 413,621.70 : x - Step 2: Convert to fraction form
413,621.70/579,857.70 = 413,621.70/x - Step 3: Cross multiply
413,621.70x = 579,857.70 × 413,621.70 - Step 4: Simplify right side
413,621.70x = 239,841,727,632.09 - Step 5: Solve for x
x = 239,841,727,632.09/413,621.70 - Step 6: Final answer
x = 579,857.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.