Finding the Fourth Proportional to 3,990,145.36, 5,986,058.80 and 1,294,260.39
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Solution
The fourth proportional to 3,990,145.36, 5,986,058.80 and 1,294,260.39 is: 1,941,663.30
Step by Step Solution
- Step 1: Write the proportion equation
3,990,145.36 : 5,986,058.80 = 1,294,260.39 : x - Step 2: Convert to fraction form
3,990,145.36/5,986,058.80 = 1,294,260.39/x - Step 3: Cross multiply
3,990,145.36x = 5,986,058.80 × 1,294,260.39 - Step 4: Simplify right side
3,990,145.36x = 7,747,518,821,116.48 - Step 5: Solve for x
x = 7,747,518,821,116.48/3,990,145.36 - Step 6: Final answer
x = 1,941,663.30
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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.