Finding the Fourth Proportional to 856,511.99, 1,284,768.92 and 257,473.08
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Solution
The fourth proportional to 856,511.99, 1,284,768.92 and 257,473.08 is: 386,209.90
Step by Step Solution
- Step 1: Write the proportion equation
856,511.99 : 1,284,768.92 = 257,473.08 : x - Step 2: Convert to fraction form
856,511.99/1,284,768.92 = 257,473.08/x - Step 3: Cross multiply
856,511.99x = 1,284,768.92 × 257,473.08 - Step 4: Simplify right side
856,511.99x = 330,793,409,633.31 - Step 5: Solve for x
x = 330,793,409,633.31/856,511.99 - Step 6: Final answer
x = 386,209.90
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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.