Finding the Fourth Proportional to 919,976.28, 1,269,447.11 and 512,095.31
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Solution
The fourth proportional to 919,976.28, 1,269,447.11 and 512,095.31 is: 706,624.65
Step by Step Solution
- Step 1: Write the proportion equation
919,976.28 : 1,269,447.11 = 512,095.31 : x - Step 2: Convert to fraction form
919,976.28/1,269,447.11 = 512,095.31/x - Step 3: Cross multiply
919,976.28x = 1,269,447.11 × 512,095.31 - Step 4: Simplify right side
919,976.28x = 650,077,917,678.09 - Step 5: Solve for x
x = 650,077,917,678.09/919,976.28 - Step 6: Final answer
x = 706,624.65
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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.