Finding the Fourth Proportional to 328,743.70, 493,115.55 and 328,743.70
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Solution
The fourth proportional to 328,743.70, 493,115.55 and 328,743.70 is: 493,115.55
Step by Step Solution
- Step 1: Write the proportion equation
328,743.70 : 493,115.55 = 328,743.70 : x - Step 2: Convert to fraction form
328,743.70/493,115.55 = 328,743.70/x - Step 3: Cross multiply
328,743.70x = 493,115.55 × 328,743.70 - Step 4: Simplify right side
328,743.70x = 162,108,630,434.54 - Step 5: Solve for x
x = 162,108,630,434.54/328,743.70 - Step 6: Final answer
x = 493,115.55
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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.