Finding the Fourth Proportional to 780,108.60, 1,170,276.30 and 330,828.60
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Solution
The fourth proportional to 780,108.60, 1,170,276.30 and 330,828.60 is: 496,290.99
Step by Step Solution
- Step 1: Write the proportion equation
780,108.60 : 1,170,276.30 = 330,828.60 : x - Step 2: Convert to fraction form
780,108.60/1,170,276.30 = 330,828.60/x - Step 3: Cross multiply
780,108.60x = 1,170,276.30 × 330,828.60 - Step 4: Simplify right side
780,108.60x = 387,160,869,942.18 - Step 5: Solve for x
x = 387,160,869,942.18/780,108.60 - Step 6: Final answer
x = 496,290.99
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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.