Finding the Fourth Proportional to 752,538.80, 1,128,514.07 and 272,652.68
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Solution
The fourth proportional to 752,538.80, 1,128,514.07 and 272,652.68 is: 408,872.46
Step by Step Solution
- Step 1: Write the proportion equation
752,538.80 : 1,128,514.07 = 272,652.68 : x - Step 2: Convert to fraction form
752,538.80/1,128,514.07 = 272,652.68/x - Step 3: Cross multiply
752,538.80x = 1,128,514.07 × 272,652.68 - Step 4: Simplify right side
752,538.80x = 307,692,389,106.12 - Step 5: Solve for x
x = 307,692,389,106.12/752,538.80 - Step 6: Final answer
x = 408,872.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.