Finding the Fourth Proportional to 1,685,288.53, 2,325,706.37 and 921,342.09
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Solution
The fourth proportional to 1,685,288.53, 2,325,706.37 and 921,342.09 is: 1,271,456.57
Step by Step Solution
- Step 1: Write the proportion equation
1,685,288.53 : 2,325,706.37 = 921,342.09 : x - Step 2: Convert to fraction form
1,685,288.53/2,325,706.37 = 921,342.09/x - Step 3: Cross multiply
1,685,288.53x = 2,325,706.37 × 921,342.09 - Step 4: Simplify right side
1,685,288.53x = 2,142,771,180,414.38 - Step 5: Solve for x
x = 2,142,771,180,414.38/1,685,288.53 - Step 6: Final answer
x = 1,271,456.57
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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.