Finding the Fourth Proportional to 1,267,285.09, 1,748,857.32 and 686,514.18
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Solution
The fourth proportional to 1,267,285.09, 1,748,857.32 and 686,514.18 is: 947,391.68
Step by Step Solution
- Step 1: Write the proportion equation
1,267,285.09 : 1,748,857.32 = 686,514.18 : x - Step 2: Convert to fraction form
1,267,285.09/1,748,857.32 = 686,514.18/x - Step 3: Cross multiply
1,267,285.09x = 1,748,857.32 × 686,514.18 - Step 4: Simplify right side
1,267,285.09x = 1,200,615,345,544.23 - Step 5: Solve for x
x = 1,200,615,345,544.23/1,267,285.09 - Step 6: Final answer
x = 947,391.68
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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.