Finding the Fourth Proportional to 1,685,346.39, 2,325,777.84 and 921,399.75
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Solution
The fourth proportional to 1,685,346.39, 2,325,777.84 and 921,399.75 is: 1,271,531.56
Step by Step Solution
- Step 1: Write the proportion equation
1,685,346.39 : 2,325,777.84 = 921,399.75 : x - Step 2: Convert to fraction form
1,685,346.39/2,325,777.84 = 921,399.75/x - Step 3: Cross multiply
1,685,346.39x = 2,325,777.84 × 921,399.75 - Step 4: Simplify right side
1,685,346.39x = 2,142,971,120,331.54 - Step 5: Solve for x
x = 2,142,971,120,331.54/1,685,346.39 - Step 6: Final answer
x = 1,271,531.56
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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.