Finding the Fourth Proportional to 3,181,106.56, 4,389,795.84 and 1,730,807.68
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Solution
The fourth proportional to 3,181,106.56, 4,389,795.84 and 1,730,807.68 is: 2,388,443.21
Step by Step Solution
- Step 1: Write the proportion equation
3,181,106.56 : 4,389,795.84 = 1,730,807.68 : x - Step 2: Convert to fraction form
3,181,106.56/4,389,795.84 = 1,730,807.68/x - Step 3: Cross multiply
3,181,106.56x = 4,389,795.84 × 1,730,807.68 - Step 4: Simplify right side
3,181,106.56x = 7,597,892,353,504.05 - Step 5: Solve for x
x = 7,597,892,353,504.05/3,181,106.56 - Step 6: Final answer
x = 2,388,443.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.