Finding the Fourth Proportional to 1,190,697.60, 1,786,276.80 and 349,276.80
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Solution
The fourth proportional to 1,190,697.60, 1,786,276.80 and 349,276.80 is: 523,982.79
Step by Step Solution
- Step 1: Write the proportion equation
1,190,697.60 : 1,786,276.80 = 349,276.80 : x - Step 2: Convert to fraction form
1,190,697.60/1,786,276.80 = 349,276.80/x - Step 3: Cross multiply
1,190,697.60x = 1,786,276.80 × 349,276.80 - Step 4: Simplify right side
1,190,697.60x = 623,905,044,618.24 - Step 5: Solve for x
x = 623,905,044,618.24/1,190,697.60 - Step 6: Final answer
x = 523,982.79
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1.5x scale
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.