Finding the Fourth Proportional to 2,589,664.80, 3,885,616.62 and 1,390,186.38
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Solution
The fourth proportional to 2,589,664.80, 3,885,616.62 and 1,390,186.38 is: 2,085,880.50
Step by Step Solution
- Step 1: Write the proportion equation
2,589,664.80 : 3,885,616.62 = 1,390,186.38 : x - Step 2: Convert to fraction form
2,589,664.80/3,885,616.62 = 1,390,186.38/x - Step 3: Cross multiply
2,589,664.80x = 3,885,616.62 × 1,390,186.38 - Step 4: Simplify right side
2,589,664.80x = 5,401,731,303,025.64 - Step 5: Solve for x
x = 5,401,731,303,025.64/2,589,664.80 - Step 6: Final answer
x = 2,085,880.50
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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.