Finding the Fourth Proportional to 4,245,490.25, 6,368,290.72 and 1,212,955.05
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Solution
The fourth proportional to 4,245,490.25, 6,368,290.72 and 1,212,955.05 is: 1,819,448.39
Step by Step Solution
- Step 1: Write the proportion equation
4,245,490.25 : 6,368,290.72 = 1,212,955.05 : x - Step 2: Convert to fraction form
4,245,490.25/6,368,290.72 = 1,212,955.05/x - Step 3: Cross multiply
4,245,490.25x = 6,368,290.72 × 1,212,955.05 - Step 4: Simplify right side
4,245,490.25x = 7,724,450,385,659.75 - Step 5: Solve for x
x = 7,724,450,385,659.75/4,245,490.25 - Step 6: Final answer
x = 1,819,448.39
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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.