Finding the Fourth Proportional to 1,226,135.76, 1,839,376.08 and 427,302.60
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Solution
The fourth proportional to 1,226,135.76, 1,839,376.08 and 427,302.60 is: 641,013.99
Step by Step Solution
- Step 1: Write the proportion equation
1,226,135.76 : 1,839,376.08 = 427,302.60 : x - Step 2: Convert to fraction form
1,226,135.76/1,839,376.08 = 427,302.60/x - Step 3: Cross multiply
1,226,135.76x = 1,839,376.08 × 427,302.60 - Step 4: Simplify right side
1,226,135.76x = 785,970,181,361.81 - Step 5: Solve for x
x = 785,970,181,361.81/1,226,135.76 - Step 6: Final answer
x = 641,013.99
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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.