Finding the Fourth Proportional to 1,660,208.80, 2,489,391.60 and 661,808.80
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Solution
The fourth proportional to 1,660,208.80, 2,489,391.60 and 661,808.80 is: 992,345.82
Step by Step Solution
- Step 1: Write the proportion equation
1,660,208.80 : 2,489,391.60 = 661,808.80 : x - Step 2: Convert to fraction form
1,660,208.80/2,489,391.60 = 661,808.80/x - Step 3: Cross multiply
1,660,208.80x = 2,489,391.60 × 661,808.80 - Step 4: Simplify right side
1,660,208.80x = 1,647,501,267,526.08 - Step 5: Solve for x
x = 1,647,501,267,526.08/1,660,208.80 - Step 6: Final answer
x = 992,345.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.