Finding the Fourth Proportional to 3,639,458.53, 5,458,990.96 and 1,115,121.07
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Solution
The fourth proportional to 3,639,458.53, 5,458,990.96 and 1,115,121.07 is: 1,672,621.30
Step by Step Solution
- Step 1: Write the proportion equation
3,639,458.53 : 5,458,990.96 = 1,115,121.07 : x - Step 2: Convert to fraction form
3,639,458.53/5,458,990.96 = 1,115,121.07/x - Step 3: Cross multiply
3,639,458.53x = 5,458,990.96 × 1,115,121.07 - Step 4: Simplify right side
3,639,458.53x = 6,087,435,840,435.53 - Step 5: Solve for x
x = 6,087,435,840,435.53/3,639,458.53 - Step 6: Final answer
x = 1,672,621.30
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1.5x scale
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.