Finding the Fourth Proportional to 3,979,615.98, 5,970,685.81 and 1,420,776.03
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Solution
The fourth proportional to 3,979,615.98, 5,970,685.81 and 1,420,776.03 is: 2,131,614.53
Step by Step Solution
- Step 1: Write the proportion equation
3,979,615.98 : 5,970,685.81 = 1,420,776.03 : x - Step 2: Convert to fraction form
3,979,615.98/5,970,685.81 = 1,420,776.03/x - Step 3: Cross multiply
3,979,615.98x = 5,970,685.81 × 1,420,776.03 - Step 4: Simplify right side
3,979,615.98x = 8,483,007,248,103.77 - Step 5: Solve for x
x = 8,483,007,248,103.77/3,979,615.98 - Step 6: Final answer
x = 2,131,614.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.