Finding the Fourth Proportional to 1,685,299.15, 2,325,721.05 and 921,352.75
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Solution
The fourth proportional to 1,685,299.15, 2,325,721.05 and 921,352.75 is: 1,271,471.28
Step by Step Solution
- Step 1: Write the proportion equation
1,685,299.15 : 2,325,721.05 = 921,352.75 : x - Step 2: Convert to fraction form
1,685,299.15/2,325,721.05 = 921,352.75/x - Step 3: Cross multiply
1,685,299.15x = 2,325,721.05 × 921,352.75 - Step 4: Simplify right side
1,685,299.15x = 2,142,809,468,915.02 - Step 5: Solve for x
x = 2,142,809,468,915.02/1,685,299.15 - Step 6: Final answer
x = 1,271,471.28
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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.