Finding the Fourth Proportional to 1,330,381.20, 1,995,571.80 and 572,585.70
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Solution
The fourth proportional to 1,330,381.20, 1,995,571.80 and 572,585.70 is: 858,878.55
Step by Step Solution
- Step 1: Write the proportion equation
1,330,381.20 : 1,995,571.80 = 572,585.70 : x - Step 2: Convert to fraction form
1,330,381.20/1,995,571.80 = 572,585.70/x - Step 3: Cross multiply
1,330,381.20x = 1,995,571.80 × 572,585.70 - Step 4: Simplify right side
1,330,381.20x = 1,142,635,876,003.26 - Step 5: Solve for x
x = 1,142,635,876,003.26/1,330,381.20 - Step 6: Final answer
x = 858,878.55
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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.