Finding the Fourth Proportional to 572,786.20, 857,138.10 and 498,719.80
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Solution
The fourth proportional to 572,786.20, 857,138.10 and 498,719.80 is: 746,302.45
Step by Step Solution
- Step 1: Write the proportion equation
572,786.20 : 857,138.10 = 498,719.80 : x - Step 2: Convert to fraction form
572,786.20/857,138.10 = 498,719.80/x - Step 3: Cross multiply
572,786.20x = 857,138.10 × 498,719.80 - Step 4: Simplify right side
572,786.20x = 427,471,741,804.38 - Step 5: Solve for x
x = 427,471,741,804.38/572,786.20 - Step 6: Final answer
x = 746,302.45
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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.