Finding the Fourth Proportional to 686,020.41, 946,689.77 and 395,625.08
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Solution
The fourth proportional to 686,020.41, 946,689.77 and 395,625.08 is: 545,951.99
Step by Step Solution
- Step 1: Write the proportion equation
686,020.41 : 946,689.77 = 395,625.08 : x - Step 2: Convert to fraction form
686,020.41/946,689.77 = 395,625.08/x - Step 3: Cross multiply
686,020.41x = 946,689.77 × 395,625.08 - Step 4: Simplify right side
686,020.41x = 374,534,209,279.86 - Step 5: Solve for x
x = 374,534,209,279.86/686,020.41 - Step 6: Final answer
x = 545,951.99
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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.