Finding the Fourth Proportional to 3,230,423.99, 4,458,014.99 and 1,780,171.32
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Solution
The fourth proportional to 3,230,423.99, 4,458,014.99 and 1,780,171.32 is: 2,456,652.89
Step by Step Solution
- Step 1: Write the proportion equation
3,230,423.99 : 4,458,014.99 = 1,780,171.32 : x - Step 2: Convert to fraction form
3,230,423.99/4,458,014.99 = 1,780,171.32/x - Step 3: Cross multiply
3,230,423.99x = 4,458,014.99 × 1,780,171.32 - Step 4: Simplify right side
3,230,423.99x = 7,936,030,420,427.23 - Step 5: Solve for x
x = 7,936,030,420,427.23/3,230,423.99 - Step 6: Final answer
x = 2,456,652.89
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1.5x scale
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.