Finding the Fourth Proportional to 461,753.10, 644,879.70 and 461,753.10
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Solution
The fourth proportional to 461,753.10, 644,879.70 and 461,753.10 is: 644,879.70
Step by Step Solution
- Step 1: Write the proportion equation
461,753.10 : 644,879.70 = 461,753.10 : x - Step 2: Convert to fraction form
461,753.10/644,879.70 = 461,753.10/x - Step 3: Cross multiply
461,753.10x = 644,879.70 × 461,753.10 - Step 4: Simplify right side
461,753.10x = 297,775,200,602.07 - Step 5: Solve for x
x = 297,775,200,602.07/461,753.10 - Step 6: Final answer
x = 644,879.70
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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.