Finding the Fourth Proportional to 828,717.48, 1,143,623.88 and 471,021.48
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Solution
The fourth proportional to 828,717.48, 1,143,623.88 and 471,021.48 is: 650,006.09
Step by Step Solution
- Step 1: Write the proportion equation
828,717.48 : 1,143,623.88 = 471,021.48 : x - Step 2: Convert to fraction form
828,717.48/1,143,623.88 = 471,021.48/x - Step 3: Cross multiply
828,717.48x = 1,143,623.88 × 471,021.48 - Step 4: Simplify right side
828,717.48x = 538,671,412,520.94 - Step 5: Solve for x
x = 538,671,412,520.94/828,717.48 - Step 6: Final answer
x = 650,006.09
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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.