Finding the Fourth Proportional to 702,879.12, 969,979.68 and 380,595.96
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Solution
The fourth proportional to 702,879.12, 969,979.68 and 380,595.96 is: 525,225.94
Step by Step Solution
- Step 1: Write the proportion equation
702,879.12 : 969,979.68 = 380,595.96 : x - Step 2: Convert to fraction form
702,879.12/969,979.68 = 380,595.96/x - Step 3: Cross multiply
702,879.12x = 969,979.68 × 380,595.96 - Step 4: Simplify right side
702,879.12x = 369,170,347,490.09 - Step 5: Solve for x
x = 369,170,347,490.09/702,879.12 - Step 6: Final answer
x = 525,225.94
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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.