Finding the Fourth Proportional to 824,942.72, 1,138,170.28 and 519,324.19
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Solution
The fourth proportional to 824,942.72, 1,138,170.28 and 519,324.19 is: 716,509.58
Step by Step Solution
- Step 1: Write the proportion equation
824,942.72 : 1,138,170.28 = 519,324.19 : x - Step 2: Convert to fraction form
824,942.72/1,138,170.28 = 519,324.19/x - Step 3: Cross multiply
824,942.72x = 1,138,170.28 × 519,324.19 - Step 4: Simplify right side
824,942.72x = 591,079,358,743.07 - Step 5: Solve for x
x = 591,079,358,743.07/824,942.72 - Step 6: Final answer
x = 716,509.58
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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.