Finding the Fourth Proportional to 1,169,791.14, 1,754,686.74 and 421,837.14
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Solution
The fourth proportional to 1,169,791.14, 1,754,686.74 and 421,837.14 is: 632,755.72
Step by Step Solution
- Step 1: Write the proportion equation
1,169,791.14 : 1,754,686.74 = 421,837.14 : x - Step 2: Convert to fraction form
1,169,791.14/1,754,686.74 = 421,837.14/x - Step 3: Cross multiply
1,169,791.14x = 1,754,686.74 × 421,837.14 - Step 4: Simplify right side
1,169,791.14x = 740,192,035,997.52 - Step 5: Solve for x
x = 740,192,035,997.52/1,169,791.14 - Step 6: Final answer
x = 632,755.72
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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.