Finding the Fourth Proportional to 4,980,220.40, 7,471,205.40 and 1,787,200.40
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Solution
The fourth proportional to 4,980,220.40, 7,471,205.40 and 1,787,200.40 is: 2,681,114.53
Step by Step Solution
- Step 1: Write the proportion equation
4,980,220.40 : 7,471,205.40 = 1,787,200.40 : x - Step 2: Convert to fraction form
4,980,220.40/7,471,205.40 = 1,787,200.40/x - Step 3: Cross multiply
4,980,220.40x = 7,471,205.40 × 1,787,200.40 - Step 4: Simplify right side
4,980,220.40x = 13,352,541,279,362.16 - Step 5: Solve for x
x = 13,352,541,279,362.16/4,980,220.40 - Step 6: Final answer
x = 2,681,114.53
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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.