Finding the Fourth Proportional to 526,979.58, 790,471.17 and 127,619.70
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Solution
The fourth proportional to 526,979.58, 790,471.17 and 127,619.70 is: 191,429.99
Step by Step Solution
- Step 1: Write the proportion equation
526,979.58 : 790,471.17 = 127,619.70 : x - Step 2: Convert to fraction form
526,979.58/790,471.17 = 127,619.70/x - Step 3: Cross multiply
526,979.58x = 790,471.17 × 127,619.70 - Step 4: Simplify right side
526,979.58x = 100,879,693,574.05 - Step 5: Solve for x
x = 100,879,693,574.05/526,979.58 - Step 6: Final answer
x = 191,429.99
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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.