Finding the Fourth Proportional to 752,911.68, 1,039,034.88 and 413,381.28
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Solution
The fourth proportional to 752,911.68, 1,039,034.88 and 413,381.28 is: 570,475.37
Step by Step Solution
- Step 1: Write the proportion equation
752,911.68 : 1,039,034.88 = 413,381.28 : x - Step 2: Convert to fraction form
752,911.68/1,039,034.88 = 413,381.28/x - Step 3: Cross multiply
752,911.68x = 1,039,034.88 × 413,381.28 - Step 4: Simplify right side
752,911.68x = 429,517,568,659.05 - Step 5: Solve for x
x = 429,517,568,659.05/752,911.68 - Step 6: Final answer
x = 570,475.37
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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.