Finding the Fourth Proportional to 4,317,362.19, 6,474,861.09 and 1,621,478.88
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Solution
The fourth proportional to 4,317,362.19, 6,474,861.09 and 1,621,478.88 is: 2,431,774.32
Step by Step Solution
- Step 1: Write the proportion equation
4,317,362.19 : 6,474,861.09 = 1,621,478.88 : x - Step 2: Convert to fraction form
4,317,362.19/6,474,861.09 = 1,621,478.88/x - Step 3: Cross multiply
4,317,362.19x = 6,474,861.09 × 1,621,478.88 - Step 4: Simplify right side
4,317,362.19x = 10,498,850,508,368.78 - Step 5: Solve for x
x = 10,498,850,508,368.78/4,317,362.19 - Step 6: Final answer
x = 2,431,774.32
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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.