Finding the Fourth Proportional to 1,283,475.42, 1,770,640.10 and 773,894.70
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Solution
The fourth proportional to 1,283,475.42, 1,770,640.10 and 773,894.70 is: 1,067,639.45
Step by Step Solution
- Step 1: Write the proportion equation
1,283,475.42 : 1,770,640.10 = 773,894.70 : x - Step 2: Convert to fraction form
1,283,475.42/1,770,640.10 = 773,894.70/x - Step 3: Cross multiply
1,283,475.42x = 1,770,640.10 × 773,894.70 - Step 4: Simplify right side
1,283,475.42x = 1,370,288,988,997.47 - Step 5: Solve for x
x = 1,370,288,988,997.47/1,283,475.42 - Step 6: Final answer
x = 1,067,639.45
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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.