Finding the Fourth Proportional to 1,292,680.97, 1,782,576.67 and 856,946.74
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Solution
The fourth proportional to 1,292,680.97, 1,782,576.67 and 856,946.74 is: 1,181,709.40
Step by Step Solution
- Step 1: Write the proportion equation
1,292,680.97 : 1,782,576.67 = 856,946.74 : x - Step 2: Convert to fraction form
1,292,680.97/1,782,576.67 = 856,946.74/x - Step 3: Cross multiply
1,292,680.97x = 1,782,576.67 × 856,946.74 - Step 4: Simplify right side
1,292,680.97x = 1,527,573,264,506.85 - Step 5: Solve for x
x = 1,527,573,264,506.85/1,292,680.97 - Step 6: Final answer
x = 1,181,709.40
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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.