Finding the Fourth Proportional to 1,385,136.42, 1,907,224.65 and 1,180,729.14
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Solution
The fourth proportional to 1,385,136.42, 1,907,224.65 and 1,180,729.14 is: 1,625,771.79
Step by Step Solution
- Step 1: Write the proportion equation
1,385,136.42 : 1,907,224.65 = 1,180,729.14 : x - Step 2: Convert to fraction form
1,385,136.42/1,907,224.65 = 1,180,729.14/x - Step 3: Cross multiply
1,385,136.42x = 1,907,224.65 × 1,180,729.14 - Step 4: Simplify right side
1,385,136.42x = 2,251,915,720,781.30 - Step 5: Solve for x
x = 2,251,915,720,781.30/1,385,136.42 - Step 6: Final answer
x = 1,625,771.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.