Finding the Fourth Proportional to 828,615.91, 1,143,577.70 and 506,514.55
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Solution
The fourth proportional to 828,615.91, 1,143,577.70 and 506,514.55 is: 699,043.72
Step by Step Solution
- Step 1: Write the proportion equation
828,615.91 : 1,143,577.70 = 506,514.55 : x - Step 2: Convert to fraction form
828,615.91/1,143,577.70 = 506,514.55/x - Step 3: Cross multiply
828,615.91x = 1,143,577.70 × 506,514.55 - Step 4: Simplify right side
828,615.91x = 579,238,744,105.54 - Step 5: Solve for x
x = 579,238,744,105.54/828,615.91 - Step 6: Final answer
x = 699,043.72
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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.