Finding the Fourth Proportional to 324,379.80, 447,854.76 and 290,329.32
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Solution
The fourth proportional to 324,379.80, 447,854.76 and 290,329.32 is: 400,842.99
Step by Step Solution
- Step 1: Write the proportion equation
324,379.80 : 447,854.76 = 290,329.32 : x - Step 2: Convert to fraction form
324,379.80/447,854.76 = 290,329.32/x - Step 3: Cross multiply
324,379.80x = 447,854.76 × 290,329.32 - Step 4: Simplify right side
324,379.80x = 130,025,367,929.56 - Step 5: Solve for x
x = 130,025,367,929.56/324,379.80 - Step 6: Final answer
x = 400,842.99
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1.5x scale
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.