Finding the Fourth Proportional to 4,258,812.80, 6,388,219.20 and 2,747,158.40
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Solution
The fourth proportional to 4,258,812.80, 6,388,219.20 and 2,747,158.40 is: 4,120,737.60
Step by Step Solution
- Step 1: Write the proportion equation
4,258,812.80 : 6,388,219.20 = 2,747,158.40 : x - Step 2: Convert to fraction form
4,258,812.80/6,388,219.20 = 2,747,158.40/x - Step 3: Cross multiply
4,258,812.80x = 6,388,219.20 × 2,747,158.40 - Step 4: Simplify right side
4,258,812.80x = 17,549,450,036,321.28 - Step 5: Solve for x
x = 17,549,450,036,321.28/4,258,812.80 - Step 6: Final answer
x = 4,120,737.60
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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.