Finding the Fourth Proportional to 395,587.68, 593,478.72 and 115,107.36
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Solution
The fourth proportional to 395,587.68, 593,478.72 and 115,107.36 is: 172,689.32
Step by Step Solution
- Step 1: Write the proportion equation
395,587.68 : 593,478.72 = 115,107.36 : x - Step 2: Convert to fraction form
395,587.68/593,478.72 = 115,107.36/x - Step 3: Cross multiply
395,587.68x = 593,478.72 × 115,107.36 - Step 4: Simplify right side
395,587.68x = 68,313,768,675.38 - Step 5: Solve for x
x = 68,313,768,675.38/395,587.68 - Step 6: Final answer
x = 172,689.32
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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.