Finding the Fourth Proportional to 1,412,128.42, 1,948,729.91 and 767,552.09
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Solution
The fourth proportional to 1,412,128.42, 1,948,729.91 and 767,552.09 is: 1,059,217.90
Step by Step Solution
- Step 1: Write the proportion equation
1,412,128.42 : 1,948,729.91 = 767,552.09 : x - Step 2: Convert to fraction form
1,412,128.42/1,948,729.91 = 767,552.09/x - Step 3: Cross multiply
1,412,128.42x = 1,948,729.91 × 767,552.09 - Step 4: Simplify right side
1,412,128.42x = 1,495,751,701,684.60 - Step 5: Solve for x
x = 1,495,751,701,684.60/1,412,128.42 - Step 6: Final answer
x = 1,059,217.90
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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.