Finding the Fourth Proportional to 777,620.13, 1,166,430.19 and 186,644.13
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Solution
The fourth proportional to 777,620.13, 1,166,430.19 and 186,644.13 is: 279,966.19
Step by Step Solution
- Step 1: Write the proportion equation
777,620.13 : 1,166,430.19 = 186,644.13 : x - Step 2: Convert to fraction form
777,620.13/1,166,430.19 = 186,644.13/x - Step 3: Cross multiply
777,620.13x = 1,166,430.19 × 186,644.13 - Step 4: Simplify right side
777,620.13x = 217,707,348,018.29 - Step 5: Solve for x
x = 217,707,348,018.29/777,620.13 - Step 6: Final answer
x = 279,966.19
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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.