Finding the Fourth Proportional to 406,771.76, 610,162.84 and 280,378.08
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Solution
The fourth proportional to 406,771.76, 610,162.84 and 280,378.08 is: 420,570.70
Step by Step Solution
- Step 1: Write the proportion equation
406,771.76 : 610,162.84 = 280,378.08 : x - Step 2: Convert to fraction form
406,771.76/610,162.84 = 280,378.08/x - Step 3: Cross multiply
406,771.76x = 610,162.84 × 280,378.08 - Step 4: Simplify right side
406,771.76x = 171,076,285,566.55 - Step 5: Solve for x
x = 171,076,285,566.55/406,771.76 - Step 6: Final answer
x = 420,570.70
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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.