Finding the Fourth Proportional to 1,226,157.62, 1,839,246.75 and 427,437.68
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Solution
The fourth proportional to 1,226,157.62, 1,839,246.75 and 427,437.68 is: 641,160.11
Step by Step Solution
- Step 1: Write the proportion equation
1,226,157.62 : 1,839,246.75 = 427,437.68 : x - Step 2: Convert to fraction form
1,226,157.62/1,839,246.75 = 427,437.68/x - Step 3: Cross multiply
1,226,157.62x = 1,839,246.75 × 427,437.68 - Step 4: Simplify right side
1,226,157.62x = 786,163,354,571.31 - Step 5: Solve for x
x = 786,163,354,571.31/1,226,157.62 - Step 6: Final answer
x = 641,160.11
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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.